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	<title>Profilometria | Notas de aplicação de rugosidade e acabamento - NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</title>
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	<title>Profilometria | Notas de aplicação de rugosidade e acabamento - NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</title>
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		<title>Stent Coating Adhesion and Delamination Analysis Using Nano Scratch Testing</title>
		<link>https://nanovea.com/pt/stent-coating-adhesion-testing-nano-scratch/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=stent-coating-adhesion-testing-nano-scratch</link>
					<comments>https://nanovea.com/pt/stent-coating-adhesion-testing-nano-scratch/#respond</comments>
		
		<dc:creator><![CDATA[Andrew Shore]]></dc:creator>
		<pubdate>Wed, 25 Mar 2026 20:57:16 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=26271</guid>

					<description><![CDATA[<p>Application Note &#124; Stent Coating Adhesion Testing Stent Coating Adhesion and Delamination Analysis Using Nano Scratch Testing Quantifying Coating Failure and Adhesion Performance on Drug-Eluting Stents Request Coating Adhesion Testing Speak with an Application Engineer Research &#38; Experimental Testing Duanjie Li, PhD Visual Design &#38; Editorial Andrew Shore Introduction Blood is carried through arteries from [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/stent-coating-adhesion-testing-nano-scratch/">Stent Coating Adhesion and Delamination Analysis Using Nano Scratch Testing</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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									<p>Application Note | Stent Coating Adhesion Testing</p>								</div>
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					<h1 class="elementor-heading-title elementor-size-default">Stent Coating Adhesion and Delamination Analysis Using Nano Scratch Testing</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Quantifying Coating Failure and Adhesion Performance on Drug-Eluting Stents</h2>				</div>
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															<img fetchpriority="high" decoding="async" width="1400" height="420" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-delamination-nano-scratch-critical-load.jpg" class="attachment-full size-full wp-image-26273" alt="stent coating adhesion testing nano scratch delamination critical load" />															</div>
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					<p class="elementor-heading-title elementor-size-default">Duanjie Li, PhD</p>				</div>
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					<p class="elementor-heading-title elementor-size-default">Andrew Shore</p>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Introdução</h2>				</div>
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									<p data-start="836" data-end="1458">Blood is carried through arteries from the heart to the rest of the body. Any weakening or blockage of these vessels can pose significant health risks and may become life-threatening. A stent is a small mesh tube inserted into the lumen of a blood vessel to treat narrowed or weakened arteries. Stent implantation is now a widely used procedure to support the arterial wall and restore blood flowᶦ.</p>								</div>
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															<img decoding="async" width="1200" height="320" src="https://nanovea.com/wp-content/uploads/2026/03/medical-stent-mesh-structure-metal-stent-geometry.jpg" class="attachment-full size-full wp-image-26304" alt="" />															</div>
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									<p>Metal stent mesh geometry illustrating the structural complexity of vascular implant design.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Why coating adhesion matters in drug-eluting stents</h2>				</div>
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									<p data-start="786" data-end="1054">Drug-eluting stents represent a major advancement in stent technology. They incorporate a biodegradable, biocompatible polymer coating that enables controlled drug release at the arterial site, helping to inhibit intimal thickening and reduce the risk of restenosisᶦᶦ.</p><p data-start="1056" data-end="1284">A critical concern in these systems is the delamination of the polymer coating from the metallic stent substrate. This coating carries the drug-eluting layer, and its adhesion directly impacts device performance and reliability.</p><p data-start="1286" data-end="1537">To improve coating adhesion, stents are often designed with complex geometries. In this study, the polymer coating is located at the bottom of grooves within the stent mesh. This configuration presents a significant challenge for adhesion measurement.</p><p data-start="1539" data-end="1795">A reliable method is required to quantitatively evaluate the interfacial strength between the polymer coating and the metal substrate. The small diameter of the stent mesh, comparable to a human hair, combined with its three-dimensional geometry, requires:</p><ul data-start="1796" data-end="1916"><li data-section-id="1n0qc6y" data-start="1796" data-end="1834">ultrafine X-Y positioning accuracy</li><li data-section-id="1003zy" data-start="1835" data-end="1870">precise control of applied load</li><li data-section-id="q3r43w" data-start="1871" data-end="1916">accurate depth measurement during testing</li></ul>								</div>
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									<p>ℹ️<em data-start="1410" data-end="1468"> Saiba mais sobre <a href="https://nanovea.com/nanoindentation-and-scratch-testing-lab-services/">nanoindentation and scratch testing lab services for coating adhesion and failure analysis</a>.</em></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Measurement Method</h2>				</div>
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									<p data-start="267" data-end="454">Nano scratch testing is performed using the <a href="https://nanovea.com/instruments/pb1000/">Testador Mecânico NANOVEA PB1000</a>, in Nano Scratch Mode, to evaluate the cohesive and adhesive strength of the polymer coating on the metal mesh of stent samples.</p><p data-start="460" data-end="648">Controlled scratch measurements are carried out on stent geometries with dimensions comparable to a human hair, enabling precise evaluation of coating adhesion on complex stent structures.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Condições de teste</h2>				</div>
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					<h3 class="elementor-heading-title elementor-size-default">1. Regular Stent Samples</h3>				</div>
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									<p data-start="1228" data-end="1620">The stent is fixed on the sample stage, with a support wire inserted inside the stent tube to ensure stability during nano scratch testing. The NANOVEA Mechanical Tester is used to perform nano scratch measurements using the parameters summarized in Table 1, to evaluate the cohesive and adhesive strength of the polymer coating on the metal substrate.</p>								</div>
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									<div class="measurement-table-wrapper"><table class="measurement-table"><thead><tr><th>Parameter</th><th>Value</th></tr></thead><tbody><tr><td>Load type</td><td>Progressivo</td></tr><tr><td>Initial load</td><td>0.05 mN</td></tr><tr><td>Final load</td><td>300 and 100 mN</td></tr><tr><td>Sliding speed</td><td>0.5 mm/min</td></tr><tr><td>Sliding distance</td><td>0.5 mm</td></tr><tr><td>Indenter geometry</td><td>Cônico</td></tr><tr><td>Indenter material (tip)</td><td>Diamante</td></tr><tr><td>Raio da ponta do indentador</td><td>20 µm</td></tr><tr><td>Temperatura</td><td>24°C (room)</td></tr></tbody></table></div>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Tabela 1: </span>Test parameters for nano scratch measurements on regular stent samples</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">2. Grooved Stent Samples</h3>				</div>
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									<p data-start="1073" data-end="1296">The SEM image in Fig. 1 shows the cross-section of the stent sample. The stent features a groove with a depth of approximately 30 µm. The polymer coating, with a thickness of 10.8 µm, is located at the bottom of the groove.</p><p data-start="1298" data-end="1497">Standard 60° conical diamond tips are not sharp enough to reach the bottom of the groove without contacting the sidewalls. Therefore, a sharper 40° conical diamond tip is used in this study (Fig. 2).</p><p data-start="1499" data-end="1582">Nano scratch measurements are performed using the parameters summarized in Table 2.</p>								</div>
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<table class="measurement-table">
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<th>Parameter</th>
<th>Value</th>
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<td>Load type</td>
<td>Progressivo</td>
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<td>Initial load</td>
<td>0.1 mN</td>
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<td>Final load</td>
<td>300 mN</td>
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<td>Taxa de carregamento</td>
<td>300 mN/min</td>
</tr>
<tr>
<td>Scratch length</td>
<td>0.25 mm</td>
</tr>
<tr>
<td>Scratch speed</td>
<td>0.25 mm/min</td>
</tr>
<tr>
<td>Indenter geometry</td>
<td>40° cone</td>
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<tr>
<td>Indenter material (tip)</td>
<td>Diamante</td>
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<tr>
<td>Raio da ponta do indentador</td>
<td>5 µm</td>
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</table>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Table 2: </span>Test parameters for nano scratch measurements on grooved stent samples</p>								</div>
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															<img loading="lazy" decoding="async" width="932" height="1042" src="https://nanovea.com/wp-content/uploads/2026/03/stent-groove-coating-cross-section-sem-adhesion-analysis.jpg" class="attachment-full size-full wp-image-26288" alt="stent groove cross section polymer coating thickness adhesion analysis nano scratch testing" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 1: </span>SEM cross-section of a grooved stent showing polymer coating located at the bottom of the groove, highlighting the challenge of coating adhesion measurement in recessed geometries.</p>								</div>
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															<img decoding="async" src="https://nanovea.com/wp-content/uploads/2026/03/nano-scratch-diamond-tip-40-degree-stent-groove-testing.svg" class="attachment-full size-full wp-image-26289" alt="nano scratch diamond tip 40 degree stent groove coating adhesion testing schematic" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 2: </span>Schematic of a 40° conical diamond tip designed for nano scratch testing inside stent grooves, enabling accurate adhesion measurement without sidewall interference.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Resultados e Discussão</h2>				</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-55f91f5 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="55f91f5" data-element_type="section">
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									<p data-start="548" data-end="837">The stent mesh has a diameter of approximately 100 μm, comparable to a human hair. Precise positioning is therefore critical to ensure the scratch test is performed at the center of the stent mesh. The NANOVEA Mechanical Tester provides X–Y positioning accuracy down to 0.25 μm, enabling accurate test placement under the integrated optical microscope.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">1. Regular Stent Samples</h3>				</div>
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									<p data-start="641" data-end="857">Nano scratch testing is performed with a progressively increasing load up to 300 mN. The full scratch track on the stent is shown in Fig. 3a, while failure behavior at different stages is presented in Fig. 3b and 3c.</p><p data-start="859" data-end="893">Two critical loads are identified:</p><ul data-start="894" data-end="1061"><li data-section-id="14iz9qw" data-start="894" data-end="972">Lc1: the load at which the first visible damage appears on the coating</li><li data-section-id="1mmzt6b" data-start="973" data-end="1061">Lc2: the load at which the coating is fully removed and the substrate is exposed</li></ul><p data-start="1063" data-end="1226">The evolution of coefficient of friction (COF) and penetration depth is shown in Fig. 4, providing insight into the progression of coating failure during the test.</p><p data-start="1228" data-end="1499">The first signs of coating damage appear at Lc1 ≈ 14.5 mN. As the applied load increases, the diamond tip progressively penetrates the polymer coating, resulting in a wider and deeper scratch track. During this phase, the COF increases from approximately 0.05 to 0.7.</p><p data-start="1501" data-end="1756">At Lc2 ≈ 78.1 mN, the coating is fully delaminated from the metal substrate. Beyond this point, as the load continues to increase, both COF and penetration depth remain relatively stable due to the mechanical support of the underlying metal substrate.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-23d3399 elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="23d3399" data-element_type="section">
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															<img loading="lazy" decoding="async" width="1200" height="404" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-nano-scratch-track-full-progressive-load.jpg" class="attachment-full size-full wp-image-26293" alt="nano scratch track stent coating progressive load adhesion testing" />															</div>
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									<p>(a) Full Scratch Track</p>								</div>
				</div>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-7016a63 elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="7016a63" data-element_type="section">
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															<img loading="lazy" decoding="async" width="897" height="670" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-initial-failure-lc1-nano-scratch-14-5mn.jpg" class="attachment-large size-large wp-image-26294" alt="" />															</div>
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									<p>(b) <strong data-start="599" data-end="616">Lc1 ≈ 14.5 mN</strong></p>								</div>
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															<img loading="lazy" decoding="async" width="897" height="670" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-delamination-lc2-nano-scratch-78-1mn.jpg" class="attachment-large size-large wp-image-26295" alt="stent coating delamination lc2 nano scratch 78.1 mN adhesion testing" />															</div>
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									<p>(c) <strong data-start="625" data-end="642">Lc2 ≈ 78.1 mN</strong></p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 3: </span>Nano scratch track on a stent coating under progressively increasing load, showing (a) full scratch path, (b) initial coating failure at Lc1 ≈ 14.5 mN, and (c) complete coating delamination at Lc2 ≈ 78.1 mN.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-c9cfe8c elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="c9cfe8c" data-element_type="section">
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															<img loading="lazy" decoding="async" width="1751" height="725" src="https://nanovea.com/wp-content/uploads/2026/03/nano-scratch-cof-depth-stent-coating-failure-analysis.jpg" class="attachment-full size-full wp-image-26296" alt="nano scratch testing stent coating coefficient of friction depth progression adhesion failure" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 4: </span>Evolution of coefficient of friction (COF) and penetration depth during nano scratch testing of a stent coating under progressively increasing load, showing the progression of coating failure and transition to substrate support.</p>								</div>
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				<div class="elementor-element elementor-element-f9e723a elementor-widget elementor-widget-text-editor" data-id="f9e723a" data-element_type="widget" data-widget_type="text-editor.default">
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									<p data-start="246" data-end="537">Failures during nano scratch testing up to a maximum load of 300 mN occur at critical loads below 100 mN. To enable a more quantitative comparison of coating performance, additional tests are performed with a maximum load of 100 mN on two stent samples, referred to as Sample 1 and Sample 2.</p><p data-start="539" data-end="794">Fig. 5 compares the scratch tracks of Sample 1 and Sample 2 after nano scratch testing. Sample 1 exhibits the first sign of coating damage at a critical load of Lc1 ≈ 13.2 mN, while Sample 2 shows initial failure at a higher load of Lc1 ≈ 21.1 mN.</p><p data-start="796" data-end="1002">Coating delamination occurs at 62.5 mN for Sample 1. In contrast, the coating on Sample 2 remains intact throughout the test, continuing to protect the metal substrate under the same loading conditions.</p><p data-start="1004" data-end="1350">This behavior is further reflected in the evolution of coefficient of friction (COF) and penetration depth, as shown in Fig. 6. When the diamond tip penetrates through the coating and contacts the metal substrate in Sample 1, the COF reaches a peak while the penetration depth decreases due to the increased stiffness of the underlying substrate.</p>								</div>
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															<img loading="lazy" decoding="async" width="1797" height="288" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-sample1-early-failure-nano-scratch.jpg" class="attachment-full size-full wp-image-26297" alt="stent coating sample 1 early failure nano scratch track delamination adhesion testing" />															</div>
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									<p>(a) Sample 1 – Early Coating Failure</p>								</div>
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															<img loading="lazy" decoding="async" width="1797" height="288" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-sample2-high-adhesion-nano-scratch.jpg" class="attachment-full size-full wp-image-26298" alt="stent coating sample 2 high adhesion nano scratch track minimal damage testing" />															</div>
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									<p>(b) Sample 2 – Improved Coating Integrity</p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 5: </span>Comparison of nano scratch tracks for two stent coatings, showing (a) early coating failure and delamination in Sample 1, and (b) improved coating integrity in Sample 2 under the same loading conditions.</p>								</div>
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															<img loading="lazy" decoding="async" width="1500" height="913" src="https://nanovea.com/wp-content/uploads/2026/03/nano-scratch-cof-depth-comparison-stent-coating-adhesion.jpg" class="attachment-full size-full wp-image-26299" alt="nano scratch testing stent coating COF depth comparison sample 1 sample 2 adhesion performance" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 6: </span>Comparison of coefficient of friction (COF) and penetration depth for Sample 1 and Sample 2 during nano scratch testing, showing earlier substrate contact and higher friction response in Sample 1, indicating weaker coating adhesion.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-f64c74c elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="f64c74c" data-element_type="section">
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					<h3 class="elementor-heading-title elementor-size-default">2. Grooved Stent Samples</h3>				</div>
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									<p data-start="279" data-end="601">As shown in Fig. 1 and Fig. 7, the grooved stent mesh has a diameter of approximately 90 μm, comparable to a human hair. The groove has a width of ~50 μm and a depth of 30 μm. This geometry presents a significant challenge for nano scratch testing, particularly for evaluating coating adhesion at the bottom of the groove.</p><p data-start="603" data-end="847">Precise positioning is critical to locate the scratch test within the groove. The nano scratch test is performed with a progressively increasing load up to 300 mN. The full scratch tracks of grooved stent Samples 3 and 4 are compared in Fig. 7.</p><p data-start="849" data-end="1108">The critical load Lc is defined as the load at which the coating fails and the substrate becomes exposed. The evolution of normal load and penetration depth, shown in Fig. 8, provides further insight into the progression of coating failure during testing.</p><p data-start="1110" data-end="1331">As the applied load increases, the diamond tip progressively penetrates the polymer coating, resulting in a deeper scratch track. When the critical load Lc is reached, the coating delaminates from the metal substrate.</p><p data-start="1333" data-end="1516">Sample 3 exhibits coating failure at Lc ≈ 126 mN, while Sample 4 fails at a higher load of Lc ≈ 173 mN. This difference indicates stronger adhesion of the coating in Sample 4.</p><p data-start="1518" data-end="1773">The measured critical loads enable quantitative comparison of coating adhesion performance. Under the same testing conditions, the coating on Sample 4 demonstrates higher resistance to delamination, making it the better-performing candidate in this study.</p>								</div>
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															<img loading="lazy" decoding="async" width="1794" height="966" src="https://nanovea.com/wp-content/uploads/2026/03/stent-groove-coating-failure-sample3-nano-scratch-126mn.jpg" class="attachment-full size-full wp-image-26300" alt="stent groove coating failure sample 3 nano scratch 126 mN adhesion testing" />															</div>
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									<p>(c) Sample 3 – Coating Failure in Groove (Lc ≈ 126 mN)</p>								</div>
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															<img loading="lazy" decoding="async" width="1794" height="966" src="https://nanovea.com/wp-content/uploads/2026/03/stent-groove-coating-high-adhesion-sample4-nano-scratch-173mn.jpg" class="attachment-full size-full wp-image-26301" alt="stent groove coating adhesion sample 4 nano scratch 173 mN minimal failure testing" />															</div>
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									<p>(d) Sample 4 – Higher Adhesion in Groove (Lc ≈ 173 mN)</p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 7: </span>Nano scratch tracks inside stent grooves for Samples 3 and 4, showing (c) coating failure at Lc ≈ 126 mN in Sample 3 and (d) higher adhesion with delayed failure at Lc ≈ 173 mN in Sample 4.</p>								</div>
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															<img loading="lazy" decoding="async" width="1500" height="680" src="https://nanovea.com/wp-content/uploads/2026/03/nano-scratch-load-depth-sample3-grooved-stent-failure.jpg" class="attachment-full size-full wp-image-26302" alt="" />															</div>
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									<p>(a) Sample 3 – Earlier Coating Failure (Lc ≈ 126 mN)</p>								</div>
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															<img loading="lazy" decoding="async" width="1500" height="680" src="https://nanovea.com/wp-content/uploads/2026/03/nano-scratch-load-depth-sample4-grooved-stent-high-adhesion.jpg" class="attachment-full size-full wp-image-26303" alt="" />															</div>
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									<p data-start="319" data-end="387">(b) Sample 4 – Delayed Failure and Higher Adhesion (Lc ≈ 173 mN)</p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 8: </span>Evolution of normal load and penetration depth during nano scratch testing inside stent grooves for Samples 3 and 4, showing earlier coating failure in Sample 3 and delayed failure at higher load in Sample 4. The vertical green line indicates the critical load (Lc) where coating delamination occurs.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Conclusão</h2>				</div>
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									<p data-start="245" data-end="468">This study demonstrates the ability of the NANOVEA Mechanical Tester to quantitatively evaluate the cohesive and adhesive strength of polymer coatings on both regular and grooved stent geometries using nano scratch testing.</p><p data-start="470" data-end="825">The recessed geometry of the stent grooves, approximately 50 μm wide and 30 μm deep, presents a significant challenge for coating adhesion measurement. The high X–Y positioning accuracy of 0.25 μm enables precise placement of the scratch test within these confined regions, allowing direct evaluation of coating performance where failure is most critical.</p><p data-start="827" data-end="1124">By applying a controlled, progressively increasing load, critical loads associated with coating failure can be identified and compared across samples. This approach enables reliable differentiation of coating adhesion performance and interfacial integrity, even on small, complex stent structures.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Referências</h2>				</div>
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									<p data-start="414" data-end="843"><em>[I] http://www.nhlbi.nih.gov/health/health-topics/topics/stents</em><br /><em>[II] http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-99402006000300008 </em></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Frequently Asked Questions About Stent Coating Adhesion Testing</h2>				</div>
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					<h3 class="elementor-heading-title elementor-size-default">What is stent coating adhesion testing?</h3>				</div>
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									<p data-start="168" data-end="494">Stent coating adhesion testing evaluates how strongly a polymer coating is bonded to the metal substrate of a stent. Techniques such as nano scratch testing quantify the load at which coating damage and delamination occur, providing measurable indicators of adhesion strength.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">What is critical load (Lc) in nano scratch testing?</h3>				</div>
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									<p data-start="658" data-end="746">Critical load (Lc) is the applied load at which a coating fails during a scratch test.</p><ul data-start="747" data-end="890"><li data-section-id="bhdxv4" data-start="747" data-end="813">Lc1 corresponds to the first visible damage in the coating</li><li data-section-id="4photk" data-start="814" data-end="890">Lc2 indicates complete coating removal and exposure of the substrate</li></ul><p data-start="892" data-end="967">These values are used to quantify and compare coating adhesion performance.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">Why is coating adhesion important in drug-eluting stents?</h3>				</div>
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									<p data-start="168" data-end="494">Coating adhesion directly affects the reliability of drug-eluting stents. Poor adhesion can lead to coating delamination, which may compromise controlled drug release and increase the risk of device failure.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">How do you measure coating adhesion inside stent grooves?</h3>				</div>
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									<p data-start="168" data-end="494">Measuring adhesion inside stent grooves requires high positioning accuracy and appropriate indenter geometry. Nano scratch testing with sharp diamond tips allows access to recessed coating regions, enabling direct evaluation of adhesion within complex stent geometries.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">What does coefficient of friction (COF) indicate in scratch testing?</h3>				</div>
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									<p data-start="168" data-end="494">The coefficient of friction (COF) reflects changes in surface interaction during the scratch test. A sudden increase in COF often indicates coating failure and contact between the indenter and the underlying metal substrate.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">How can nano scratch testing compare different coating formulations?</h3>				</div>
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									<p data-start="168" data-end="494">Nano scratch testing enables direct comparison of coatings by measuring critical loads under controlled conditions. Higher critical loads indicate stronger adhesion and improved resistance to delamination, allowing selection of better-performing coating systems.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Need Reliable Stent Coating Adhesion Testing?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/pt/stent-coating-adhesion-testing-nano-scratch/">Stent Coating Adhesion and Delamination Analysis Using Nano Scratch Testing</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Dental Surface Roughness Measurement &#038; 3D Tooth Topography</title>
		<link>https://nanovea.com/pt/dental-surface-roughness-measurement-3d-tooth-topography/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=dental-surface-roughness-measurement-3d-tooth-topography</link>
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		<dc:creator><![CDATA[Andrew Shore]]></dc:creator>
		<pubdate>Thu, 05 Mar 2026 21:02:01 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
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		<guid ispermalink="false">https://nanovea.com/?p=26196</guid>

					<description><![CDATA[<p>Application Note &#124; Dental Surface Characterization Dental Surface Roughness Measurement and Full 3D Tooth Topography Surface Roughness Analysis Using Non-Contact Optical Profilometry Request Surface Analysis Ask an Expert Live Prepared by Walter Alabiso, PhD; Davide Morrone, MPhys; Andrew Shore, MA Introduction The ability to accurately characterize tooth surfaces, including micro-roughness and 3D surface topography at [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/dental-surface-roughness-measurement-3d-tooth-topography/">Dental Surface Roughness Measurement &#038; 3D Tooth Topography</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="26196" class="elementor elementor-26196" data-elementor-post-type="post">
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									<p>Application Note | Dental Surface Characterization</p>								</div>
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					<h1 class="elementor-heading-title elementor-size-default">Dental Surface Roughness Measurement and Full 3D Tooth Topography</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Surface Roughness Analysis Using Non-Contact Optical Profilometry</h2>				</div>
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															<img loading="lazy" decoding="async" width="1024" height="307" src="https://nanovea.com/wp-content/uploads/2026/03/dental-surface-roughness-measurement-3d-optical-profilometer.jpg" class="attachment-large size-large wp-image-26092" alt="Dental surface roughness measurement and 3D molar reconstruction using optical profilometry" />															</div>
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					<p class="elementor-heading-title elementor-size-default">Preparado por</p>				</div>
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					<p class="elementor-heading-title elementor-size-default">Walter Alabiso, PhD; Davide Morrone, MPhys; Andrew Shore, MA</p>				</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-b5911d1 elementor-section-content-middle elementor-reverse-mobile elementor-reverse-tablet elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="b5911d1" data-element_type="section" data-settings="{&quot;background_background&quot;:&quot;classic&quot;}">
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					<h2 class="elementor-heading-title elementor-size-default">Introdução</h2>				</div>
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									<p data-start="836" data-end="1458">The ability to accurately characterize tooth surfaces, including micro-roughness and 3D surface topography at the nanometer scale, enables advanced research and applications in orthodontics and dental materials science. Non-contact optical profilometry provides a precise method for measuring dental surface roughness and analyzing tooth surface morphology without damaging delicate structures. These measurements support the development of composite dental materials that replicate the natural surface roughness of enamel, as well as the design and fabrication of patient-specific dental casts and restorative components.</p><p data-start="1460" data-end="1982">Low surface roughness plays a primary role in limiting bacterial adhesion and plaque formation, thereby reducing the risk of cavities. An increase in average roughness (Ra) above 2 µm leads to a steep increase in biofilm formation in vivo.¹ An Ra of 0.2 µm is considered the threshold value below which no further reduction in bacterial adhesion can be expected.²</p><p data-start="1984" data-end="2182">Reconstruction of the tooth’s 3D surface topography enables the fabrication of dental casts, which are essential for accurate diagnosis, treatment planning, and the fabrication of dental appliances.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Non-Contact Optical Profilometry for Dental Surface Analysis</h2>				</div>
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									<p data-start="232" data-end="713">The present study illustrates the potential of NANOVEA’s high-precision non-contact optical profilometers for dental surface roughness measurement and 3D tooth topography analysis. Chromatic Light technology offers significant advantages over classical touch probe techniques. It acquires data points from deep crevices and complex geometries without introducing measurement errors or artifacts caused by local plastic deformation and without requiring extensive data manipulation.</p><p data-start="715" data-end="1135">Compared to focus variation systems, single-point optical sensing provides superior lateral and height accuracy, with X/Y resolution below 0.5 µm, maximum vertical resolution of 1.9 nm, and the ability to measure surface angles up to 87°. The technique is effective on transparent, opaque, specular, diffusive, polished, and rough dental surfaces, making it well suited for comprehensive dental surface characterization.</p>								</div>
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									<p>ℹ️<em data-start="1410" data-end="1468"> Saiba mais sobre <a href="https://nanovea.com/surface-profiling-lab-services/">non-contact optical profilometry and surface roughness measurement services</a>.</em></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Measurement Method</h2>				</div>
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									<p data-start="313" data-end="697">Nesta aplicação, o <a href="https://nanovea.com/instruments/jr25/" target="_blank" rel="noopener">NANOVEA JR25 Non-Contact Optical Profiler</a> was used to analyze the surface roughness and 3D surface topography of an adult human molar previously affected by tooth decay. The side of the tooth was scanned using a PS2–MG140 single-point optical sensor to measure surface roughness parameters over a defined region of interest and along multiple line profiles.</p><p data-start="699" data-end="888">The crown of the tooth was then scanned and reconstructed using a PS5–MG35 single-point optical sensor, which is suited for larger-area acquisition and full 3D tooth topography measurement.</p>								</div>
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									<p style="text-align: center; font-size: 20pt; color: black;"><br />NANOVEA <span style="font-size: 20pt; color: #1b96cf;">JR25 Portable</span><br />Perfilômetro Óptico</p>								</div>
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							<img loading="lazy" decoding="async" width="300" height="264" src="https://nanovea.com/wp-content/uploads/2026/01/nanovea-jr25-portable-optical-profilometer.jpg" class="elementor-animation-grow attachment-medium size-medium wp-image-25699" alt="NANOVEA JR25 portable optical profilometer for non-contact surface measurement" />								</a>
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					<h2 class="elementor-heading-title elementor-size-default">Surface Measurement Using NANOVEA Optical Profilometer</h2>				</div>
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									<p data-start="914" data-end="1026">Surface roughness measurements were performed on the lateral side of the molar crown, followed by full 3D reconstruction of the crown surface. Separate single-point optical sensors were used to optimize measurement accuracy for both localized roughness analysis and large-area surface topography acquisition.</p>								</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-ce29651 elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="ce29651" data-element_type="section">
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									<p>PS2 – MG140</p>								</div>
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															<img loading="lazy" decoding="async" width="351" height="465" src="https://nanovea.com/wp-content/uploads/2026/03/optical-profilometer-dental-surface-roughness-measurement.jpg" class="attachment-large size-large wp-image-26123" alt="" />															</div>
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									<p>Surface roughness analysis by area and parallel line profiles on the side of the tooth’s crown.</p>								</div>
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									<p>PS5 – MG35</p>								</div>
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															<img loading="lazy" decoding="async" width="351" height="465" src="https://nanovea.com/wp-content/uploads/2026/03/3d-tooth-topography-measurement-optical-profilometer.jpg" class="attachment-large size-large wp-image-26122" alt="" />															</div>
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									<p>Full 3D surface reconstruction of the tooth’s crown.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Parâmetros de medição</h2>				</div>
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									<p data-start="1228" data-end="1620">The following measurement parameters were used for localized surface roughness analysis and full 3D surface reconstruction of the molar crown using NANOVEA single-point optical sensors.</p>								</div>
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<table class="measurement-table">
<thead>
<tr>
<th>Parameter</th>
<th>Roughness Analysis (Area)</th>
<th>Roughness Analysis (Profiles)</th>
<th>Full 3D Reconstruction</th>
</tr>
</thead>
<tbody>
<tr>
<td>Optical Pen</td>
<td>PS2-MG140</td>
<td>PS2-MG140</td>
<td>PS5-MG35</td>
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<tr>
<td>Z-Range [µm]</td>
<td>300</td>
<td>300</td>
<td>10000</td>
</tr>
<tr>
<td>X-Distance [mm]</td>
<td>2.00</td>
<td>3.00</td>
<td>7.50</td>
</tr>
<tr>
<td>X-Step Size [µm]</td>
<td>1.70</td>
<td>1.70</td>
<td>10.00</td>
</tr>
<tr>
<td>Y-Distance [mm]</td>
<td>2.00</td>
<td>1.00</td>
<td>7.00</td>
</tr>
<tr>
<td>Y-Step Size [µm]</td>
<td>1.70</td>
<td>100.00</td>
<td>10.00</td>
</tr>
<tr>
<td>Averaging (Avg)</td>
<td>1</td>
<td>1</td>
<td>1</td>
</tr>
<tr>
<td>Measurement Type</td>
<td>Direct</td>
<td>Direct</td>
<td>Direct</td>
</tr>
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<td>Acquisition Mode</td>
<td>Single Frequency</td>
<td>Single Frequency</td>
<td>Dual Frequency</td>
</tr>
<tr>
<td>Acquisition Rate [Hz]</td>
<td>200</td>
<td>200</td>
<td>100–400</td>
</tr>
<tr>
<td>Light Intensity [%]</td>
<td>100</td>
<td>100</td>
<td>100</td>
</tr>
</tbody>
</table>
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					<h2 class="elementor-heading-title elementor-size-default">Optical Profilometry Results</h2>				</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-55f91f5 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="55f91f5" data-element_type="section">
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					<h3 class="elementor-heading-title elementor-size-default">Surface Roughness Analysis (Area)</h3>				</div>
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									<p data-start="548" data-end="837">The PS2 single-point optical sensor was used to investigate fine surface features on the side of the tooth. The image below shows a false-color 2D surface map of the scanned region obtained by non-contact optical profilometry.</p>								</div>
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															<img loading="lazy" decoding="async" width="1162" height="906" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-scanned-region-2d-height-map.jpg" class="attachment-full size-full wp-image-26127" alt="False-color 2D height map of scanned tooth surface region" />															</div>
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									<p data-start="548" data-end="837">A least-squares degree-8 polynomial form removal was applied to isolate the surface roughness component. The roughness filters S-Gaussian 2.5 µm and L-Gaussian 0.8 mm were then applied according to ISO 25178. The resulting filtered surface and corresponding roughness parameters are presented below.</p>								</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-e80acb9 elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="e80acb9" data-element_type="section">
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															<img loading="lazy" decoding="async" width="950" height="748" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-surface-roughness-iso-25178-filtered-map.jpg" class="attachment-full size-full wp-image-26133" alt="" />															</div>
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									<div class="iso-roughness-table-wrapper"><table class="iso-roughness-table"><tbody><!-- Filter Settings --><tr class="section-header"><td colspan="4">ISO 25178 – Roughness (S-L)</td></tr><tr><td colspan="4"><strong>S-filter (λs):</strong> Gaussian, 2.5 µm</td></tr><tr><td colspan="4"><strong>F:</strong> [Workflow] Form removed (LS-poly 8)</td></tr><tr><td colspan="4"><strong>L-filter (λc):</strong> Gaussian, 0.8 mm</td></tr><!-- Height Parameters Header --><tr class="section-header"><td colspan="4">Height Parameters</td></tr><!-- Height Parameter Rows --><tr><td class="param-code">Sq</td><td>2.433</td><td>µm</td><td>Altura da raiz quadrada média</td></tr><tr><td class="param-code">Ssk</td><td>-0.102</td><td> </td><td>Skewness</td></tr><tr><td class="param-code">SKU</td><td>3.715</td><td> </td><td>Curtose</td></tr><tr><td class="param-code">Sp</td><td>18.861</td><td>µm</td><td>Altura máxima do pico</td></tr><tr><td class="param-code">Sv</td><td>16.553</td><td>µm</td><td>Maximum pit depth</td></tr><tr><td class="param-code">Sz</td><td>35.414</td><td>µm</td><td>Altura máxima</td></tr><tr><td class="param-code">Sa</td><td>1.888</td><td>µm</td><td>Altura média aritmética</td></tr></tbody></table></div>								</div>
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									<p data-start="117" data-end="216">The average surface roughness Sa is 1.888 µm, while the peak-to-valley height Sz reaches 35.414 µm.</p><p data-start="218" data-end="295">A 3D surface rendering of the filtered area is shown below for visualization.</p>								</div>
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															<img loading="lazy" decoding="async" width="1200" height="892" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-surface-roughness-3d-render-iso-filtered.jpg" class="attachment-full size-full wp-image-26129" alt="3D rendering of ISO 25178 filtered tooth surface roughness" />															</div>
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		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-af84ca9 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="af84ca9" data-element_type="section">
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					<h3 class="elementor-heading-title elementor-size-default">Roughness Analysis (Profiles)</h3>				</div>
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									<p data-start="548" data-end="837">Surface roughness profiles were measured using a series of 11 parallel line scans along the X direction on the side of the tooth. The false-color 2D surface map of the raw scan is shown below.</p>								</div>
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															<img loading="lazy" decoding="async" width="1298" height="517" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-line-roughness-raw-scan-2d-map.jpg" class="attachment-full size-full wp-image-26143" alt="False-color 2D raw scan of tooth surface for line roughness profiles" />															</div>
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									<p data-start="548" data-end="837">The surface form was removed using a least-squares 8-degree polynomial prior to applying the metrological filters, leaving the residual surface shown below.</p>								</div>
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															<img loading="lazy" decoding="async" width="1298" height="517" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-line-roughness-residual-after-form-removal.jpg" class="attachment-full size-full wp-image-26144" alt="" />															</div>
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									<p data-start="548" data-end="837">A statistical analysis of the measured surface roughness profiles reveals the following line roughness parameters.</p>								</div>
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															<img loading="lazy" decoding="async" width="1670" height="606" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-line-roughness-profile-overlay-analysis.jpg" class="attachment-full size-full wp-image-26148" alt="Overlay of multiple tooth surface roughness profiles for statistical analysis" />															</div>
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									<div class="iso-profile-wrapper"><p><!-- Desktop / wide screens --></p><table class="iso-profile-table iso-profile-desktop"><colgroup> <col class="col-code" /> <col class="col-unit" /> <col class="col-desc" /> <col class="col-num" /> <col class="col-num" /> <col class="col-num" /> <col class="col-num" /> </colgroup><tbody><tr class="iso-profile-section"><td colspan="7">ISO 4287 – Roughness (S-L)</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>F:</strong> Nenhum</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>S-filter (λs):</strong> Gaussian, 2.5 µm</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>L-filter (λc):</strong> Gaussian, 0.8 mm</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>Evaluation length:</strong> All λc (3)</td></tr><tr class="iso-profile-section"><td colspan="7">Amplitude Parameters – Roughness Profile</td></tr><tr class="iso-profile-header"><th class="center"> </th><th class="center"> </th><th>Description</th><th class="center">Mean</th><th class="center">Std dev</th><th class="center">Min</th><th class="center">Max</th></tr><tr><td class="iso-profile-code">Rp</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum peak height of the roughness profile</td><td class="center">5.683</td><td class="center">0.761</td><td class="center">4.315</td><td class="center">6.610</td></tr><tr><td class="iso-profile-code">Rv</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum valley depth of the roughness profile</td><td class="center">6.242</td><td class="center">1.009</td><td class="center">4.701</td><td class="center">8.438</td></tr><tr><td class="iso-profile-code">Rz</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum height of roughness profile</td><td class="center">11.925</td><td class="center">1.676</td><td class="center">9.123</td><td class="center">15.048</td></tr><tr><td class="iso-profile-code">Ra</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Arithmetic mean deviation of the roughness profile</td><td class="center">2.063</td><td class="center">0.297</td><td class="center">1.710</td><td class="center">2.629</td></tr><tr><td class="iso-profile-code">Rq</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Root-mean-square (RMS) deviation of the roughness profile</td><td class="center">2.523</td><td class="center">0.361</td><td class="center">2.057</td><td class="center">3.175</td></tr></tbody></table><p><!-- Mobile / tablet stacked cards --></p><div class="iso-profile-mobile"><div class="iso-profile-card-head">ISO 4287 – Roughness (S-L)</div><div class="iso-profile-meta-block"><div><strong>F:</strong> Nenhum</div><div><strong>S-filter (λs):</strong> Gaussian, 2.5 µm</div><div><strong>L-filter (λc):</strong> Gaussian, 0.8 mm</div><div><strong>Evaluation length:</strong> All λc (3)</div></div><div class="iso-profile-card-section">Amplitude Parameters – Roughness Profile</div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rp</span><span class="unit">µm</span></div><div class="desc">Maximum peak height of the roughness profile</div><div class="grid"><div>Mean<strong>5.683</strong></div><div>Std dev<strong>0.761</strong></div><div>Min<strong>4.315</strong></div><div>Max<strong>6.610</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rv</span><span class="unit">µm</span></div><div class="desc">Maximum valley depth of the roughness profile</div><div class="grid"><div>Mean<strong>6.242</strong></div><div>Std dev<strong>1.009</strong></div><div>Min<strong>4.701</strong></div><div>Max<strong>8.438</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rz</span><span class="unit">µm</span></div><div class="desc">Maximum height of roughness profile</div><div class="grid"><div>Mean<strong>11.925</strong></div><div>Std dev<strong>1.676</strong></div><div>Min<strong>9.123</strong></div><div>Max<strong>15.048</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Ra</span><span class="unit">µm</span></div><div class="desc">Arithmetic mean deviation of the roughness profile</div><div class="grid"><div>Mean<strong>2.063</strong></div><div>Std dev<strong>0.297</strong></div><div>Min<strong>1.710</strong></div><div>Max<strong>2.629</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rq</span><span class="unit">µm</span></div><div class="desc">Root-mean-square (RMS) deviation of the roughness profile</div><div class="grid"><div>Mean<strong>2.523</strong></div><div>Std dev<strong>0.361</strong></div><div>Min<strong>2.057</strong></div><div>Max<strong>3.175</strong></div></div></div></div></div>								</div>
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									<p data-start="184" data-end="276">The value of Ra is consistent with the Sa value extracted from the surface area measurement.</p><p data-start="278" data-end="659">Different metrological filters can be applied to distinguish between macroscopic waviness and microscopic surface roughness. For example, a coarser filter cut-off, such as the 8 mm cut-off used with the Robust Gaussian order-2 filter, produces a smoother waviness profile (red) that is less sensitive to sharp local variations and follows the original surface profile more loosely.</p>								</div>
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															<img loading="lazy" decoding="async" width="1855" height="800" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-surface-waviness-vs-roughness-filter-comparison.jpg" class="attachment-full size-full wp-image-26158" alt="Comparison of waviness and roughness profiles on tooth surface using coarse filter" />															</div>
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									<p data-start="548" data-end="837">Alternatively, a finer cut-off (e.g., 0.08 mm) enables the analysis of micro-roughness by removing the waviness component that follows the original profile at a larger scale, leaving the finer surface roughness features of the tooth visible.</p>								</div>
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															<img loading="lazy" decoding="async" width="1853" height="790" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-surface-microroughness-profile-filtering.jpg" class="attachment-full size-full wp-image-26159" alt="" />															</div>
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									<p data-start="548" data-end="837">The microroughness analysis obtained using a 0.08 mm L-Gaussian filter is presented below.</p>								</div>
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															<img loading="lazy" decoding="async" width="1200" height="431" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-surface-microroughness-final-profile.jpg" class="attachment-full size-full wp-image-26160" alt="Final microroughness profile of tooth surface after filtering" />															</div>
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									<div class="iso-profile-wrapper"><p><!-- Desktop / wide screens --></p><table class="iso-profile-table iso-profile-desktop"><colgroup> <col class="col-code" /> <col class="col-unit" /> <col class="col-desc" /> <col class="col-num" /> <col class="col-num" /> <col class="col-num" /> <col class="col-num" /> </colgroup><tbody><tr class="iso-profile-section"><td colspan="7">ISO 4287 – Roughness (S-L)</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>F:</strong> Nenhum</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>S-filter (λs):</strong> Gaussian, 2.5 µm</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>L-filter (λc):</strong> Gaussian, 0.08 mm</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>Evaluation length:</strong> All λc (37)</td></tr><tr class="iso-profile-section"><td colspan="7">Amplitude Parameters – Roughness Profile</td></tr><tr class="iso-profile-header"><th class="center"> </th><th class="center"> </th><th>Description</th><th class="center">Mean</th><th class="center">Std dev</th><th class="center">Min</th><th class="center">Max</th></tr><tr><td class="iso-profile-code">Rp</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum peak height of the roughness profile</td><td class="center">1.582</td><td class="center">0.122</td><td class="center">1.342</td><td class="center">1.748</td></tr><tr><td class="iso-profile-code">Rv</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum valley depth of the roughness profile</td><td class="center">1.466</td><td class="center">0.119</td><td class="center">1.254</td><td class="center">1.661</td></tr><tr><td class="iso-profile-code">Rz</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum height of roughness profile</td><td class="center">3.049</td><td class="center">0.196</td><td class="center">2.820</td><td class="center">3.409</td></tr><tr><td class="iso-profile-code">Ra</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Arithmetic mean deviation of the roughness profile</td><td class="center">0.495</td><td class="center">0.047</td><td class="center">0.423</td><td class="center">0.597</td></tr><tr><td class="iso-profile-code">Rq</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Root-mean-square (RMS) deviation of the roughness profile</td><td class="center">0.643</td><td class="center">0.056</td><td class="center">0.562</td><td class="center">0.762</td></tr></tbody></table><p><!-- Mobile / tablet stacked cards --></p><div class="iso-profile-mobile"><div class="iso-profile-card-head">ISO 4287 – Roughness (S-L)</div><div class="iso-profile-meta-block"><div><strong>F:</strong> Nenhum</div><div><strong>S-filter (λs):</strong> Gaussian, 2.5 µm</div><div><strong>L-filter (λc):</strong> Gaussian, 0.8 mm</div><div><strong>Evaluation length:</strong> All λc (3)</div></div><div class="iso-profile-card-section">Amplitude Parameters – Roughness Profile</div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rp</span><span class="unit">µm</span></div><div class="desc">Maximum peak height of the roughness profile</div><div class="grid"><div>Mean<strong>5.683</strong></div><div>Std dev<strong>0.761</strong></div><div>Min<strong>4.315</strong></div><div>Max<strong>6.610</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rv</span><span class="unit">µm</span></div><div class="desc">Maximum valley depth of the roughness profile</div><div class="grid"><div>Mean<strong>6.242</strong></div><div>Std dev<strong>1.009</strong></div><div>Min<strong>4.701</strong></div><div>Max<strong>8.438</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rz</span><span class="unit">µm</span></div><div class="desc">Maximum height of roughness profile</div><div class="grid"><div>Mean<strong>11.925</strong></div><div>Std dev<strong>1.676</strong></div><div>Min<strong>9.123</strong></div><div>Max<strong>15.048</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Ra</span><span class="unit">µm</span></div><div class="desc">Arithmetic mean deviation of the roughness profile</div><div class="grid"><div>Mean<strong>2.063</strong></div><div>Std dev<strong>0.297</strong></div><div>Min<strong>1.710</strong></div><div>Max<strong>2.629</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rq</span><span class="unit">µm</span></div><div class="desc">Root-mean-square (RMS) deviation of the roughness profile</div><div class="grid"><div>Mean<strong>2.523</strong></div><div>Std dev<strong>0.361</strong></div><div>Min<strong>2.057</strong></div><div>Max<strong>3.175</strong></div></div></div></div></div>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">Full 3D Tooth Surface Topography Reconstruction</h3>				</div>
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									<p data-start="548" data-end="837">The extended Z-scan range of the PS5 optical sensor enables high-fidelity scanning of the entire tooth crown surface. The resulting 3D surface topography is shown below.</p>								</div>
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															<img loading="lazy" decoding="async" width="469" height="348" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-crown-surface-topography-3d-optical-profilometry.jpg" class="attachment-full size-full wp-image-26172" alt="False-color surface topography map of full tooth crown measured with optical profilometer" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">2D VIEW: </span>2D surface map of the tooth crown measured with optical profilometry</p>								</div>
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															<img loading="lazy" decoding="async" width="1200" height="930" src="https://nanovea.com/wp-content/uploads/2026/03/molar-crown-3d-surface-reconstruction-profilometer.jpg" class="attachment-full size-full wp-image-26173" alt="3D surface reconstruction of molar crown from optical profilometer scan" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">3D VIEW: </span>High-fidelity 3D rendering of the molar crown surface obtained with optical profilometry</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Conclusão</h2>				</div>
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									<p data-start="401" data-end="560">In this application, the NANOVEA JR25 Non-Contact Optical Profiler was used to measure the surface roughness and 3D surface topography of an adult human molar.</p><p data-start="562" data-end="922">Both the area scan and the line profile analysis revealed a roughness Rq of approximately 2.5 µm and an Ra of about 1.9–2.0 µm. These values are consistent with results reported in the literature.³ The use of a narrower L-Gaussian filter with an 80 µm cut-off enabled further investigation of micro-roughness, revealing an Rq of 0.643 µm and an Ra of 0.495 µm.</p><p data-start="924" data-end="1270">The full 3D surface topography of the molar crown was reconstructed with high fidelity. The high measurement resolution allows detection of fine surface features and crevices. The resulting surface data can be easily processed and exported as STL files, enabling the design and fabrication of customized dental devices and restorative components.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Referências</h2>				</div>
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									<p data-start="414" data-end="843"><em>[1] Shin, B.W., et al. Surface Roughness of Prefabricated Pediatric Zirconia Crowns Following Simulated Toothbrushing. Pediatric Dentistry 44.5 (2022): 363–367.</em><br /><em>[2] Bollen, C.M.L., Paul Lambrechts, and Marc Quirynen. Comparison of surface roughness of oral hard materials to the threshold surface roughness for bacterial plaque retention: A review of the literature. Dental Materials 13.4 (1997): 258–269.</em><br /><em>[3] Suputtamongkol, K., et al. Surface roughness resulting from wear of lithia-disilicate-based posterior crowns. Wear 269.3–4 (2010): 317–322.</em></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Frequently Asked Questions About Dental Surface Roughness Measurement</h2>				</div>
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					<h3 class="elementor-heading-title elementor-size-default">What is dental surface roughness measurement?</h3>				</div>
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									<p data-start="168" data-end="494">Dental surface roughness measurement quantifies the microscopic texture of tooth surfaces using parameters such as Ra, Rq, and Sa. Optical profilometers measure these features without contacting the surface, allowing accurate analysis of enamel, restorative materials, and dental crowns.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">Why use optical profilometry to measure tooth roughness?</h3>				</div>
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									<p data-start="168" data-end="494">Optical profilometry provides non-contact surface measurement with nanometer-scale vertical resolution. It captures 2D surface maps and full 3D surface topography of dental structures without damaging soft or polished surfaces.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">What roughness parameters are used for dental surface analysis?</h3>				</div>
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									<p data-start="168" data-end="494">Common roughness parameters include Ra (arithmetic mean roughness), Rq (root mean square roughness), Sa (areal roughness), and Sz (maximum surface height). These parameters help evaluate enamel wear, plaque adhesion risk, and the performance of restorative materials.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">Why is surface roughness important in dentistry?</h3>				</div>
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									<p data-start="168" data-end="494">Surface roughness affects plaque retention, wear resistance, and the long-term performance of dental restorations. Controlling micro-roughness can reduce bacterial adhesion and improve the durability of dental materials.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Need Reliable Surface Roughness Measurement for Dental Materials?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/pt/dental-surface-roughness-measurement-3d-tooth-topography/">Dental Surface Roughness Measurement &#038; 3D Tooth Topography</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Análise de Superfície com Shot Peened</title>
		<link>https://nanovea.com/pt/analise-de-superficie-jateada-2/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=shot-peened-surface-analysis</link>
					<comments>https://nanovea.com/pt/analise-de-superficie-jateada-2/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Quarta, 16 de agosto de 2023 14:19:21 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=23106</guid>

					<description><![CDATA[<p>ANÁLISE DE SUPERFÍCIE DE SHOT PEENED UTILIZANDO PROFILÔMETRO 3D SEM CONTATO Preparado por CRAIG LEISING INTRODUÇÃO O shot peening é um processo no qual um substrato é bombardeado com esferas esféricas de metal, vidro ou cerâmica - comumente chamadas de “shot” - com uma força destinada a induzir a plasticidade na superfície. A análise das características antes e depois do peening fornece percepções cruciais para [...]</p>
<p>The post <a href="https://nanovea.com/pt/analise-de-superficie-jateada-2/">Shot Peened Surface Analysis</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="23106" class="elementor elementor-23106" data-elementor-post-type="post">
						<section class="elementor-section elementor-top-section elementor-element elementor-element-5265bd8 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="5265bd8" data-element_type="section">
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					<h1 class="elementor-heading-title elementor-size-default">ANÁLISE DE SUPERFÍCIE SHOT PEENED</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">USANDO PROFILÔMETRO 3D SEM CONTATO</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="225" src="https://nanovea.com/wp-content/uploads/2023/08/Shot-Peening-Surface-Measurement.jpg" class="attachment-medium_large size-medium_large wp-image-23115" alt="" />															</div>
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					<p class="elementor-heading-title elementor-size-default">Preparado por</p>				</div>
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					<p class="elementor-heading-title elementor-size-default">CRAIG LEISING</p>				</div>
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		</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-a4074c1 elementor-section-content-middle elementor-reverse-mobile elementor-reverse-tablet elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="a4074c1" data-element_type="section" data-settings="{&quot;background_background&quot;:&quot;classic&quot;}">
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUÇÃO</h2>				</div>
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									<p>O shot peening é um processo no qual um substrato é bombardeado com esferas esféricas de metal, vidro ou cerâmica - comumente chamadas de &quot;shot&quot; - com uma força destinada a induzir plasticidade na superfície. Analisar as características antes e depois do peening fornece informações cruciais para melhorar a compreensão e o controle do processo. A rugosidade da superfície e a área de cobertura das ondulações deixadas pelo disparo são aspectos de interesse especialmente notáveis.</p>								</div>
				</div>
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					<h3 class="elementor-heading-title elementor-size-default">Importância do perfilômetro 3D sem contato para análise de superfície com shot peened</h3>				</div>
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									<p>Ao contrário dos perfilômetros de contato tradicionais, que têm sido tradicionalmente usados para análise de superfícies shotpeened, a medição 3D sem contato fornece uma imagem 3D completa para oferecer uma compreensão mais abrangente da área de cobertura e da topografia da superfície. Sem capacidades 3D, uma inspeção dependerá apenas de informações 2D, que são insuficientes para caracterizar uma superfície. Compreender a topografia, a área de cobertura e a rugosidade em 3D é a melhor abordagem para controlar ou melhorar o processo de peening. NANOVEA <a href="https://nanovea.com/profilometers/">Perfilômetros 3D sem contato</a> utilizam a tecnologia Chromatic Light com uma capacidade única de medir ângulos acentuados encontrados em superfícies usinadas e marteladas. Além disso, quando outras técnicas falham em fornecer dados confiáveis devido ao contato da sonda, variação da superfície, ângulo ou refletividade, os perfilômetros NANOVEA são bem-sucedidos.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">OBJETIVO DA MEDIÇÃO</h2>				</div>
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									<p>Nesta aplicação, o perfilômetro sem contato NANOVEA ST400 é usado para medir a matéria-prima e duas superfícies perfuradas de forma diferente para uma análise comparativa. Existe uma lista interminável de parâmetros de superfície que podem ser calculados automaticamente após a digitalização da superfície 3D. Aqui, revisaremos a superfície 3D e selecionaremos as áreas de interesse para análise posterior, incluindo a quantificação e investigação da rugosidade, reentrâncias e área da superfície.</p>								</div>
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									<p style="text-align: center; font-size: 20pt; color: black;">NANOVEA <span style="font-size: 20pt; color: #1b96cf;">Padrão ST400</span><br />Profilômetro óptico 3D</p>								</div>
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							<img loading="lazy" decoding="async" width="768" height="512" src="https://nanovea.com/wp-content/uploads/2020/12/Nanovea-Optical-Profilometry-ST500.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-9557" alt="Profilômetro 3D NANOVEA ST500" />								</a>
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					<h2 class="elementor-heading-title elementor-size-default">A AMOSTRA</h2>				</div>
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															<img loading="lazy" decoding="async" width="601" height="354" src="https://nanovea.com/wp-content/uploads/2023/08/Shot-Peened-Surfaces-ISO-25178.jpg" class="attachment-large size-large wp-image-23113" alt="Teste de superfície Shot Peened" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">RESULTADOS</h2>				</div>
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					<h3 class="elementor-heading-title elementor-size-default">SUPERFÍCIE DE AÇO</h3>				</div>
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															<img loading="lazy" decoding="async" width="459" height="381" src="https://nanovea.com/wp-content/uploads/2023/08/Steel-Surface-ISO-25178-Roughness.jpg" class="attachment-large size-large wp-image-23116" alt="Rugosidade da superfície jateada" />															</div>
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															<img loading="lazy" decoding="async" width="454" height="385" src="https://nanovea.com/wp-content/uploads/2023/08/Steel-Surface-ISO25178-Roughness-Analysis.jpg" class="attachment-large size-large wp-image-23117" alt="Caracterização de superfícies Shot Peened" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">ISO 25178</span><span class="fontstyle0" style="color: #000000;"> PARÂMETROS DE RUGOSIDADE 3D</span></p>								</div>
				</div>
				<div class="elementor-element elementor-element-2252db5 elementor-widget__width-initial elementor-widget elementor-widget-text-editor" data-id="2252db5" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<html>
<head>
    <style>
        table {
            border-collapse: collapse;
            width: 100%;
        }

        td {
            border: 1px solid black;
            padding: 8px;
            text-align: left;
        }

        td:nth-child(3) {
            color: #1B96CF;
            font-weight: bold;
            font-style: italic;
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        /* Apply bold and italic style to table rows */
        tr {
            font-weight: bold;
            font-style: italic;
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</head>
<body>
<table>
<tbody>
<tr>
<td>SA</td>
<td>0,399 μm</td>
<td>Rugosidade Média</td>
</tr>
<tr>
<td>Sq</td>
<td>0,516 μm</td>
<td>Rugosidade RMS</td>
</tr>
<tr>
<td>Sz</td>
<td>5,686 μm</td>
<td>Pico a Vale Máximo</td>
</tr>
<tr>
<td>Sp</td>
<td>2,976 μm</td>
<td>Altura máxima de pico</td>
</tr>
<tr>
<td>Sv</td>
<td>2,711 μm</td>
<td>Profundidade Máxima do Poço</td>
</tr>
<tr>
<td>SKU</td>
<td>3.9344</td>
<td>Curtose</td>
</tr>
<tr>
<td>Ssk</td>
<td>-0.0113</td>
<td>Skewness</td>
</tr>
<tr>
<td>Sal</td>
<td>0,0028 mm</td>
<td>Comprimento da autocorrelação</td>
</tr>
<tr>
<td>Str</td>
<td>0.0613</td>
<td>Taxa de Aspecto da Textura</td>
</tr>
<tr>
<td>Sdar</td>
<td>26,539 mm²</td>
<td>Área de Superfície</td>
</tr>
<tr>
<td>Svk</td>
<td>0,589 μm</td>
<td>Profundidade Reduzida do Vale</td>
</tr>
</tbody>
</table>
&nbsp;								</div>
				</div>
					</div>
		</div>
					</div>
		</section>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-3343ac4 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="3343ac4" data-element_type="section">
						<div class="elementor-container elementor-column-gap-default">
					<div class="elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-28dc073" data-id="28dc073" data-element_type="column">
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						<div class="elementor-element elementor-element-79b452c elementor-widget elementor-widget-heading" data-id="79b452c" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">RESULTADOS</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-6794e46 elementor-widget elementor-widget-heading" data-id="6794e46" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h3 class="elementor-heading-title elementor-size-default">SUPERFÍCIE PEENADA 1</h3>				</div>
				</div>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-2acba06 elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="2acba06" data-element_type="section">
						<div class="elementor-container elementor-column-gap-narrow">
					<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-44113e1" data-id="44113e1" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-520e0a7 elementor-widget elementor-widget-image" data-id="520e0a7" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="440" height="377" src="https://nanovea.com/wp-content/uploads/2023/08/Peened-Surface-ISO-25178-Roughness.jpg" class="attachment-large size-large wp-image-23118" alt="Perfil de superfície Shot Peened" />															</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-ea285df" data-id="ea285df" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-41f6ebf elementor-widget elementor-widget-image" data-id="41f6ebf" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="380" height="386" src="https://nanovea.com/wp-content/uploads/2023/08/Shot-Peened-Surface-ISO25178-Roughness.jpg" class="attachment-large size-large wp-image-23108" alt="Profilometria de superfície Shot Peened" />															</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-1f3a816 elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="1f3a816" data-element_type="section">
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						<div class="elementor-element elementor-element-9afb6dd elementor-widget elementor-widget-text-editor" data-id="9afb6dd" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">COBERTURA DE SUPERFÍCIE </span><span class="fontstyle0" style="color: #000000;">98.105%</span></p>								</div>
				</div>
				<div class="elementor-element elementor-element-29bfe40 elementor-widget elementor-widget-image" data-id="29bfe40" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="445" height="370" src="https://nanovea.com/wp-content/uploads/2023/08/Shot-Peening-ISO25178-Roughness.jpg" class="attachment-large size-large wp-image-23114" alt="Estudo de superfície Shot Peened" />															</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-01aa9d3" data-id="01aa9d3" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-278511c elementor-widget elementor-widget-text-editor" data-id="278511c" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">ISO 25178</span><span class="fontstyle0" style="color: #000000;"> PARÂMETROS DE RUGOSIDADE 3D</span></p>								</div>
				</div>
				<div class="elementor-element elementor-element-749588a elementor-widget__width-initial elementor-widget elementor-widget-text-editor" data-id="749588a" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<!DOCTYPE html>
<html>
<head>
    <style>
        table {
            border-collapse: collapse;
            width: 100%;
        }

        th, td {
            border: 1px solid black;
            padding: 8px;
            text-align: left;
        }

        th {
            background-color: #f2f2f2;
        }

        td:nth-child(3) {
            color: #1B96CF;
        }

        /* Apply bold and italic style to table rows */
        tr {
            font-weight: bold;
            font-style: italic;
        }
    </style>
</head>
<body>

<table>
    <tr>
        <td>Sa</td>
        <td>4,102 μm</td>
        <td>Rugosidade Média</td>
    </tr>
    <tr>
        <td>Sq</td>
        <td>5,153 μm</td>
        <td>Rugosidade RMS</td>
    </tr>
    <tr>
        <td>Sz</td>
        <td>44,975 μm</td>
        <td>Pico a Vale Máximo</td>
    </tr>
    <tr>
        <td>Sp</td>
        <td>24,332 μm</td>
        <td>Altura máxima de pico</td>
    </tr>
    <tr>
        <td>Sv</td>
        <td>20,644 μm</td>
        <td>Profundidade Máxima do Poço</td>
    </tr>
    <tr>
        <td>SKU</td>
        <td>3.0187</td>
        <td>Curtose</td>
    </tr>
    <tr>
        <td>Ssk</td>
        <td>0.0625</td>
        <td>Skewness</td>
    </tr>
    <tr>
        <td>Sal</td>
        <td>0,0976 milímetros</td>
        <td>Comprimento da autocorrelação</td>
    </tr>
    <tr>
        <td>Str</td>
        <td>0.9278</td>
        <td>Taxa de Aspecto da Textura</td>
    </tr>
    <tr>
        <td>Sdar</td>
        <td>29,451 mm²</td>
        <td>Área de Superfície</td>
    </tr>
    <tr>
        <td>Svk</td>
        <td>5,008 μm</td>
        <td>Profundidade Reduzida do Vale</td>
    </tr>
</table>

</body>
</html>
								</div>
				</div>
					</div>
		</div>
					</div>
		</section>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-8cbc24c elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="8cbc24c" data-element_type="section">
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						<div class="elementor-element elementor-element-44e7973 elementor-widget elementor-widget-heading" data-id="44e7973" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">RESULTADOS</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-474414a elementor-widget elementor-widget-heading" data-id="474414a" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h3 class="elementor-heading-title elementor-size-default">SUPERFÍCIE PEENADA 2</h3>				</div>
				</div>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-b93c817 elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="b93c817" data-element_type="section">
						<div class="elementor-container elementor-column-gap-narrow">
					<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-4c7d136" data-id="4c7d136" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-8af2d8f elementor-widget elementor-widget-image" data-id="8af2d8f" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="434" height="378" src="https://nanovea.com/wp-content/uploads/2023/08/Shot-Peened-ISO-25178-Analysis.jpg" class="attachment-large size-large wp-image-23120" alt="Teste de superfície Shot Peened" />															</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-0a23c59" data-id="0a23c59" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-4123bb8 elementor-widget elementor-widget-image" data-id="4123bb8" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="423" height="385" src="https://nanovea.com/wp-content/uploads/2023/08/Shot-Peened-Surface-Roughness.jpg" class="attachment-large size-large wp-image-23112" alt="Análise da superfície jateada" />															</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-9905c5a elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="9905c5a" data-element_type="section">
						<div class="elementor-container elementor-column-gap-narrow">
					<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-8f73d6a" data-id="8f73d6a" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-72c2bcc elementor-widget elementor-widget-text-editor" data-id="72c2bcc" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">COBERTURA DE SUPERFÍCIE</span>
<span class="fontstyle0" style="color: #000000;"> 97.366%</span></p>								</div>
				</div>
				<div class="elementor-element elementor-element-2c564ba elementor-widget elementor-widget-image" data-id="2c564ba" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="422" height="373" src="https://nanovea.com/wp-content/uploads/2023/08/Shot-Peened-Roughness.jpg" class="attachment-large size-large wp-image-23121" alt="Metrologia de superfícies jateadas" />															</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-671ee07" data-id="671ee07" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-7de2ae6 elementor-widget elementor-widget-text-editor" data-id="7de2ae6" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">ISO 25178</span><span class="fontstyle0" style="color: #000000;"> PARÂMETROS DE RUGOSIDADE 3D</span></p>								</div>
				</div>
				<div class="elementor-element elementor-element-8ce3112 elementor-widget__width-initial elementor-widget elementor-widget-text-editor" data-id="8ce3112" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<!DOCTYPE html>
<html>
<head>
    <style>
        table {
            border-collapse: collapse;
            width: 100%;
        }

        td {
            border: 1px solid black;
            padding: 8px;
            text-align: left;
        }

        td:nth-child(3) {
            color: #1B96CF;
            font-weight: bold;
            font-style: italic;
        }

        /* Apply bold and italic style to table rows */
        tr {
            font-weight: bold;
            font-style: italic;
        }
    </style>
</head>
<body>

<table>
    <tr>
        <td>Sa</td>
        <td>4,330 μm</td>
        <td>Rugosidade Média</td>
    </tr>
    <tr>
        <td>Sq</td>
        <td>5,455 μm</td>
        <td>Rugosidade RMS</td>
    </tr>
    <tr>
        <td>Sz</td>
        <td>54,013 μm</td>
        <td>Pico a Vale Máximo</td>
    </tr>
    <tr>
        <td>Sp</td>
        <td>25,908 μm</td>
        <td>Altura máxima de pico</td>
    </tr>
    <tr>
        <td>Sv</td>
        <td>28,105 μm</td>
        <td>Profundidade Máxima do Poço</td>
    </tr>
    <tr>
        <td>SKU</td>
        <td>3.0642</td>
        <td>Curtose</td>
    </tr>
    <tr>
        <td>Ssk</td>
        <td>0.1108</td>
        <td>Skewness</td>
    </tr>
    <tr>
        <td>Sal</td>
        <td>0,1034 mm</td>
        <td>Comprimento da autocorrelação</td>
    </tr>
    <tr>
        <td>Str</td>
        <td>0.9733</td>
        <td>Taxa de Aspecto da Textura</td>
    </tr>
    <tr>
        <td>Sdar</td>
        <td>29,623 mm²</td>
        <td>Área de Superfície</td>
    </tr>
    <tr>
        <td>Svk</td>
        <td>5,167 μm</td>
        <td>Profundidade Reduzida do Vale</td>
    </tr>
</table>
</body>
</html>
								</div>
				</div>
					</div>
		</div>
					</div>
		</section>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-ab6ead9 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="ab6ead9" data-element_type="section">
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				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">CONCLUSÃO</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-ff1e3df elementor-widget elementor-widget-text-editor" data-id="ff1e3df" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<div class="group w-full text-token-text-primary border-b border-black/10 dark:border-gray-900/50 bg-gray-50 dark:bg-[#444654]"><div class="flex p-4 gap-4 text-base md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl md:py-6 lg:px-0 m-auto"><div class="relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]"><div class="flex flex-grow flex-col gap-3"><div class="min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words"><div class="markdown prose w-full break-words dark:prose-invert light"><p>Neste aplicativo de análise de superfície perfurada, demonstramos como o NANOVEA ST400 3D Non-Contact Profiler caracteriza com precisão a topografia e os detalhes nanométricos de uma superfície perfurada. É evidente que tanto a Superfície 1 quanto a Superfície 2 têm um impacto significativo em todos os parâmetros aqui relatados quando comparados à matéria-prima. Um simples exame visual das imagens revela as diferenças entre as superfícies. Isso é confirmado observando a área de cobertura e os parâmetros listados. Em comparação com a Superfície 2, a Superfície 1 apresenta uma rugosidade média menor (Sa), mossas mais rasas (Sv) e área superficial reduzida (Sdar), mas uma área de cobertura ligeiramente maior.</p><p>A partir dessas medições de superfície 3D, as áreas de interesse podem ser prontamente identificadas e submetidas a uma ampla gama de medições, incluindo rugosidade, acabamento, textura, forma, topografia, nivelamento, empenamento, planaridade, volume, altura do degrau e outros. Uma seção transversal 2D pode ser rapidamente escolhida para uma análise detalhada. Esta informação permite uma investigação abrangente de superfícies marteladas, utilizando uma gama completa de recursos de medição de superfície. Áreas específicas de interesse podem ser examinadas com um módulo AFM integrado. Os perfilômetros 3D NANOVEA oferecem velocidades de até 200 mm/s. Eles podem ser personalizados em termos de tamanho, velocidade, recursos de digitalização e podem até mesmo atender aos padrões de Sala Limpa Classe 1. Opções como Indexing Conveyor e integração para uso Inline ou Online também estão disponíveis.</p></div></div></div></div></div></div>								</div>
				</div>
				<div class="elementor-element elementor-element-364a806 elementor-widget elementor-widget-text-editor" data-id="364a806" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<p><span class="fontstyle0">Um agradecimento especial ao Sr. Hayden, da IMF, por fornecer a amostra mostrada nesta nota. Industrial Metal Finishing Inc. | indmetfin.com</span></p>								</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-599c5dc elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="599c5dc" data-element_type="section">
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				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Tem um aplicativo semelhante?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/pt/analise-de-superficie-jateada-2/">Shot Peened Surface Analysis</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Morfologia da superfície da tinta</title>
		<link>https://nanovea.com/pt/morfologia-da-superficie-da-tinta/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=paint-surface-morphology</link>
					<comments>https://nanovea.com/pt/morfologia-da-superficie-da-tinta/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Sex, 04 de agosto de 2023 16:44:00 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=23049</guid>

					<description><![CDATA[<p>MORFOLOGIA DA SUPERFÍCIE DA TINTA MONITORAMENTO AUTOMATIZADO DA EVOLUÇÃO EM TEMPO REAL UTILIZANDO O PROFILOMETRO 3D NANOVEA Preparado por DUANJIE LI, PhD INTRODUÇÃO As propriedades protetoras e decorativas da tinta desempenham um papel importante em vários setores, incluindo o automotivo, marítimo, militar e de construção. Para obter as propriedades desejadas, como resistência à corrosão, proteção UV e resistência à abrasão, as fórmulas e arquiteturas das tintas são [...]</p>
<p>The post <a href="https://nanovea.com/pt/morfologia-da-superficie-da-tinta/">Paint Surface Morphology</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="23049" class="elementor elementor-23049" data-elementor-post-type="post">
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					<h1 class="elementor-heading-title elementor-size-default">MORFOLOGIA DA SUPERFÍCIE DA PINTURA</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">MONITORAMENTO AUTOMATIZADO DA EVOLUÇÃO EM TEMPO REAL<br>USANDO O PERFILÔMETRO NANOVEA 3D</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="225" src="https://nanovea.com/wp-content/uploads/2023/08/Drying-Paint-Analysis-Study.jpg" class="attachment-medium_large size-medium_large wp-image-23058" alt="Morfologia da superfície da tinta" />															</div>
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					<p class="elementor-heading-title elementor-size-default">Preparado por</p>				</div>
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					<p class="elementor-heading-title elementor-size-default">DUANJIE LI, PhD</p>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUÇÃO</h2>				</div>
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									<p>As propriedades protetoras e decorativas da tinta desempenham um papel significativo em uma variedade de indústrias, incluindo automotiva, naval, militar e de construção. Para obter as propriedades desejadas, como resistência à corrosão, proteção UV e resistência à abrasão, as fórmulas e arquiteturas de tintas são cuidadosamente analisadas, modificadas e otimizadas.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">IMPORTÂNCIA DO PERFILÔMETRO 3D SEM CONTATO PARA ANÁLISE DE MORFOLOGIA DE SUPERFÍCIE DE TINTA DE SECAGEM</h3>				</div>
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									<p>A tinta geralmente é aplicada na forma líquida e passa por um processo de secagem, que envolve a evaporação de solventes e a transformação da tinta líquida em um filme sólido. Durante o processo de secagem, a superfície pintada muda progressivamente de forma e textura. Diferentes acabamentos de superfície e texturas podem ser desenvolvidos usando aditivos para modificar a tensão superficial e as propriedades de fluxo da tinta. No entanto, em casos de receita de tinta mal formulada ou tratamento de superfície inadequado, podem ocorrer falhas indesejadas na superfície da tinta.</p>
<p>O monitoramento in situ preciso da morfologia da superfície da tinta durante o período de secagem pode fornecer informações diretas sobre o mecanismo de secagem. Além disso, a evolução em tempo real das morfologias da superfície é uma informação muito útil em diversas aplicações, como a impressão 3D. A NANOVEA <a href="https://nanovea.com/profilometers/">Perfilômetros 3D sem contato</a> medir a morfologia da superfície da tinta dos materiais sem tocar na amostra, evitando qualquer alteração de forma que possa ser causada por tecnologias de contato, como uma caneta deslizante.</p>								</div>
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									<p>Nesta aplicação, o perfilômetro sem contato NANOVEA ST500, equipado com um sensor óptico de linha de alta velocidade, é usado para monitorar a morfologia da superfície da tinta durante seu período de secagem de 1 hora. Mostramos a capacidade do perfilômetro sem contato NANOVEA em fornecer medição de perfil 3D automatizada em tempo real de materiais com mudança de forma contínua.</p>								</div>
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									<p style="text-align: center; font-size: 20pt; color: black;">
  NANOVEA <span style="font-size: 20pt; color: #1b96cf;">ST500 Área Grande</span><br>
  Profilômetro óptico 3D
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																<a href="https://nanovea.com/instruments/st500">
							<img loading="lazy" decoding="async" width="768" height="512" src="https://nanovea.com/wp-content/uploads/2020/12/Nanovea-Optical-Profilometry-ST500.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-9557" alt="Profilômetro 3D NANOVEA ST500" />								</a>
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									<p>A tinta foi aplicada na superfície de uma folha de metal, seguida imediatamente por medições automatizadas da evolução da morfologia da tinta de secagem in situ usando o NANOVEA ST500 Non-Contact Profilometer equipado com um sensor de linha de alta velocidade. Uma macro foi programada para medir e registrar automaticamente a morfologia da superfície 3D em intervalos de tempo específicos: 0, 5, 10, 20, 30, 40, 50 e 60 min. Este procedimento de verificação automatizado permite que os usuários executem tarefas de verificação automaticamente, executando procedimentos definidos em sequência, reduzindo significativamente o esforço, o tempo e os possíveis erros do usuário em comparação com o teste manual ou verificações repetidas. Essa automação prova ser extremamente útil para medições de longo prazo envolvendo várias varreduras em diferentes intervalos de tempo.</p><p>O sensor de linha óptica gera uma linha brilhante composta por 192 pontos, conforme mostrado na FIGURA 1. Esses 192 pontos de luz varrem a superfície da amostra simultaneamente, aumentando significativamente a velocidade de varredura. Isso garante que cada escaneamento 3D seja concluído rapidamente para evitar mudanças substanciais na superfície durante cada escaneamento individual.</p>								</div>
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															<img loading="lazy" decoding="async" width="664" height="426" src="https://nanovea.com/wp-content/uploads/2023/08/Paint-Coating-Analysis.jpg" class="attachment-large size-large wp-image-23062" alt="Análise de revestimento de tinta usando o perfilômetro 3D" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 1:</span><span class="fontstyle0" style="color: #000000;"> Sensor óptico de linha escaneando a superfície da tinta que está secando.</span></p>								</div>
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									<p>A visualização em cores falsas, a visualização 3D e o perfil 2D da topografia da tinta de secagem em tempos representativos são mostrados na FIGURA 2, FIGURA 3 e FIGURA 4, respectivamente. A cor falsa nas imagens facilita a detecção de características que não são facilmente discerníveis. Diferentes cores representam variações de altura em diferentes áreas da superfície da amostra. A visualização 3D fornece uma ferramenta ideal para os usuários observarem a superfície pintada de diferentes ângulos. Durante os primeiros 30 minutos do teste, as cores falsas na superfície da tinta mudam gradualmente de tons mais quentes para tons mais frios, indicando uma diminuição progressiva da altura ao longo do tempo neste período. Esse processo fica mais lento, como mostra a leve mudança de cor ao comparar a tinta em 30 e 60 minutos.</p><p>Os valores médios da altura da amostra e da rugosidade Sa em função do tempo de secagem da tinta estão representados na FIGURA 5. A análise completa da rugosidade da tinta após 0, 30 e 60 minutos de secagem está listada na TABELA 1. Pode-se observar que a altura média da superfície da tinta diminui rapidamente de 471 para 329 µm nos primeiros 30 minutos de tempo de secagem. A textura da superfície se desenvolve ao mesmo tempo que o solvente vaporiza, levando a um aumento do valor de rugosidade Sa de 7,19 para 22,6 µm. O processo de secagem da tinta desacelera a partir daí, resultando em uma diminuição gradual da altura da amostra e do valor de Sa para 317 µm e 19,6 µm, respectivamente, em 60 min.</p><p>Este estudo destaca os recursos do perfilômetro sem contato 3D NANOVEA no monitoramento das alterações da superfície 3D da tinta que está secando em tempo real, fornecendo informações valiosas sobre o processo de secagem da tinta. Ao medir a morfologia da superfície sem tocar na amostra, o perfilômetro evita a introdução de alterações de forma na tinta não seca, o que pode ocorrer com tecnologias de contato como a caneta deslizante. Essa abordagem sem contato garante uma análise precisa e confiável da morfologia da superfície da tinta de secagem.</p>								</div>
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															<img loading="lazy" decoding="async" width="768" height="325" src="https://nanovea.com/wp-content/uploads/2023/08/Paint-Coating-Morphology.jpg" class="attachment-medium_large size-medium_large wp-image-23064" alt="Morfologia da superfície da tinta" />															</div>
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															<img loading="lazy" decoding="async" width="768" height="325" src="https://nanovea.com/wp-content/uploads/2023/08/Drying-Paint-Surface-Morphology.jpg" class="attachment-medium_large size-medium_large wp-image-23060" alt="Morfologia do revestimento de tinta" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 2:</span><span class="fontstyle0" style="color: #000000;"> Evolução da morfologia da superfície da tinta de secagem em diferentes tempos.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="617" height="461" src="https://nanovea.com/wp-content/uploads/2023/08/Drying-Paint-Coating-Measurement.jpg" class="attachment-medium_large size-medium_large wp-image-23059" alt="Caracterização da superfície da tinta" />															</div>
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															<img decoding="async" src="https://nanovea.com/wp-content/uploads/2023/08/Drying-Paint-Surface-QC.jpg" title="" alt="Perfil da superfície da tinta" loading="lazy" />															</div>
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															<img decoding="async" src="https://nanovea.com/wp-content/uploads/2023/08/Drying-Paint-Surface-Profilometry.jpg" title="" alt="Análise da superfície da tinta" loading="lazy" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 3:</span><span class="fontstyle0" style="color: #000000;"> Visualização 3D da evolução da superfície da tinta em diferentes tempos de secagem.</span></p>								</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-217ac1c elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="217ac1c" data-element_type="section">
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															<img loading="lazy" decoding="async" width="703" height="559" src="https://nanovea.com/wp-content/uploads/2023/08/Paint-Coating-Measurement.jpg" class="attachment-medium_large size-medium_large wp-image-23063" alt="Profilometria da superfície da tinta" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 4:</span><span class="fontstyle0" style="color: #000000;"> Perfil 2D na amostra de tinta após diferentes tempos de secagem.</span></p>								</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-8ec42f4 elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="8ec42f4" data-element_type="section">
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															<img loading="lazy" decoding="async" width="737" height="557" src="https://nanovea.com/wp-content/uploads/2023/08/Paint-Morphology-Evolution.jpg" class="attachment-medium_large size-medium_large wp-image-23071" alt="Estudo da superfície da tinta" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 5:</span><span class="fontstyle0" style="color: #000000;"> Evolução da altura média da amostra e valor de rugosidade Sa em função do tempo de secagem da tinta.</span></p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">ISO 25178 - Parâmetros de textura de superfície</h3>				</div>
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									<table class="alignright" style="width: 100%;">
<tbody>
<tr>
<td><em><b>Tempo de secagem (min)</b></em></td>
<td><em><b>0</b></em></td>
<td><em><b>5</b></em></td>
<td><em><b>10</b></em></td>
<td><em><b>20</b></em></td>
<td><em><b>30</b></em></td>
<td><em><b>40</b></em></td>
<td><em><b>50</b></em></td>
<td><em><b>60</b></em></td>
</tr>
<tr>
<td><em><b>quadrados (µm)</b></em></td>
<td>7.91</td>
<td>9.4</td>
<td>10.8</td>
<td>20.9</td>
<td>22.6</td>
<td>20.6</td>
<td>19.9</td>
<td>19.6</td>
</tr>
<tr>
<td><em><b>SKU</b></em></td>
<td>26.3</td>
<td>19.8</td>
<td>14.6</td>
<td>11.9</td>
<td>10.5</td>
<td>9.87</td>
<td>9.83</td>
<td>9.82</td>
</tr>
<tr>
<td><em><b>Sp (µm)</b></em></td>
<td>97.4</td>
<td>105</td>
<td>108</td>
<td>116</td>
<td>125</td>
<td>118</td>
<td>114</td>
<td>112</td>
</tr>
<tr>
<td><em><b>Sv (µm)</b></em></td>
<td>127</td>
<td>70.2</td>
<td>116</td>
<td>164</td>
<td>168</td>
<td>138</td>
<td>130</td>
<td>128</td>
</tr>
<tr>
<td><em><b>Sz (µm)</b></em></td>
<td>224</td>
<td>175</td>
<td>224</td>
<td>280</td>
<td>294</td>
<td>256</td>
<td>244</td>
<td>241</td>
</tr>
<tr>
<td><em><b>Sa (µm)</b></em></td>
<td>4.4</td>
<td>5.44</td>
<td>6.42</td>
<td>12.2</td>
<td>13.3</td>
<td>12.2</td>
<td>11.9</td>
<td>11.8</td>
</tr>
</tbody>
</table>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">quadrado –</span><span class="fontstyle0" style="color: #000000;"> Altura da raiz quadrada média </span><span class="fontstyle0" style="color: #1b96cf;"> | sku-</span><span class="fontstyle0" style="color: #000000;"> Curtose </span><span class="fontstyle0" style="color: #1b96cf;"> | Sp-</span><span class="fontstyle0" style="color: #000000;"> Altura máxima do pico</span><span class="fontstyle0" style="color: #1b96cf;"> | Sv-</span><span class="fontstyle0" style="color: #000000;"> Altura máxima do poço</span><span class="fontstyle0" style="color: #1b96cf;"> | Sz –</span><span class="fontstyle0" style="color: #000000;"> Altura máxima</span><span class="fontstyle0" style="color: #1b96cf;"> | Sv-</span><span class="fontstyle0" style="color: #000000;"> Altura média aritmética</span></p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">TABELA 1:</span><span class="fontstyle0" style="color: #000000;"> <span class="fontstyle0">Rugosidade da pintura em diferentes tempos de secagem.</span> <br /></span></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSÃO</h2>				</div>
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<div class="markdown prose w-full break-words dark:prose-invert light">
<p>Nesta aplicação, mostramos os recursos do perfilômetro sem contato 3D NANOVEA ST500 no monitoramento da evolução da morfologia da superfície da tinta durante o processo de secagem. O sensor óptico de linha de alta velocidade, gerando uma linha com 192 pontos de luz que examinam a superfície da amostra simultaneamente, tornou o estudo eficiente em termos de tempo, garantindo uma precisão incomparável.</p>
<p>A função macro do software de aquisição permite a programação de medições automatizadas da morfologia da superfície 3D in situ, tornando-o particularmente útil para medições de longo prazo envolvendo várias varreduras em intervalos de tempo específicos. Reduz significativamente o tempo, o esforço e o potencial de erros do usuário. As mudanças progressivas na morfologia da superfície são continuamente monitoradas e registradas em tempo real à medida que a tinta seca, fornecendo informações valiosas sobre o mecanismo de secagem da tinta.</p>
<p>Os dados mostrados aqui representam apenas uma fração dos cálculos disponíveis no software de análise. Os perfilômetros NANOVEA são capazes de medir praticamente qualquer superfície, seja ela transparente, escura, refletiva ou opaca.</p></div></div></div>
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					<h2 class="elementor-heading-title elementor-size-default">Tem um aplicativo semelhante?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/pt/morfologia-da-superficie-da-tinta/">Paint Surface Morphology</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Inspeção de mapeamento de rugosidade usando perfilometria 3D</title>
		<link>https://nanovea.com/pt/inspeccao-da-rugosidade-do-mapeamento-utilizando-a-profilometria-3d/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=roughness-mapping-inspection-using-3d-profilometry</link>
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		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Seg, 01 de maio de 2023 18:42:24 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Flatness and Warpage]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Volume and Area]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=22017</guid>

					<description><![CDATA[<p>INSPECÇÃO DE MAPEAMENTO DE RUGIDEZ USANDO PROFILOMETRIA 3D Preparado por DUANJIE, PhD INTRODUÇÃO A rugosidade e a textura da superfície são fatores críticos que afetam a qualidade final e o desempenho de um produto. Uma compreensão completa da rugosidade, da textura e da consistência da superfície é essencial para selecionar as melhores medidas de processamento e controle. A inspeção em linha rápida, quantificável e confiável do produto [...]</p>
<p>The post <a href="https://nanovea.com/pt/inspeccao-da-rugosidade-do-mapeamento-utilizando-a-profilometria-3d/">Roughness Mapping Inspection using 3D Profilometry</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="22017" class="elementor elementor-22017" data-elementor-post-type="post">
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					<h1 class="elementor-heading-title elementor-size-default">INSPEÇÃO DE MAPEAMENTO DE RUGOSIDADE</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">USANDO A PROFILOMETRIA 3D</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="224" src="https://nanovea.com/wp-content/uploads/2023/05/Roughness-Mapping-Profilometer-NANOVEA.jpg" class="attachment-medium_large size-medium_large wp-image-22022" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparado por</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">DUANJIE, PhD</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUÇÃO</h2>				</div>
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									<p>A rugosidade e a textura da superfície são fatores críticos que afetam a qualidade final e o desempenho de um produto. Uma compreensão completa da rugosidade, da textura e da consistência da superfície é essencial para selecionar as melhores medidas de processamento e controle. A inspeção em linha rápida, quantificável e confiável das superfícies dos produtos é necessária para identificar os produtos defeituosos a tempo e otimizar as condições da linha de produção.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTÂNCIA DO PROFILÔMETRO 3D SEM CONTATO PARA A INSPEÇÃO DE SUPERFÍCIE EM LINHA</h2>				</div>
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									<p>Defeitos superficiais em produtos resultam do processamento de materiais e da fabricação do produto. A inspeção de qualidade de superfície em linha garante o mais rigoroso controle de qualidade dos produtos finais. NANOVEA <a href="https://nanovea.com/profilometers/">Perfiladores ópticos 3D sem contato</a> utilizam a tecnologia Chromatic Light com capacidade exclusiva para determinar a rugosidade de uma amostra sem contato. O sensor de linha permite a digitalização do perfil 3D de uma grande superfície em alta velocidade. O limite de rugosidade, calculado em tempo real pelo software de análise, serve como uma ferramenta de aprovação/reprovação rápida e confiável.</p>								</div>
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									<p style="text-align: left;">OBJETIVO DA MEDIÇÃO</p>								</div>
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									<p><em>Neste estudo, o NANOVEA ST400 equipado com um sensor de alta velocidade é usado para inspecionar a superfície de uma amostra de teflon com defeito para mostrar a capacidade do NANOVEA</em></p><p><em>Proﬁlômetros sem contato para fornecer inspeção de superfície rápida e confiável em uma linha de produção.</em></p>								</div>
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									<p style="text-align: left;">NANOVEA</p>								</div>
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									<p style="text-align: left;">ST400</p>								</div>
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									<span class="elementor-button-text">SAIBA MAIS</span>
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																<a href="https://nanovea.com/instruments/st400">
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					<h2 class="elementor-heading-title elementor-size-default">RESULTADOS &amp; DISCUSSÃO</h2>				</div>
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									<p style="text-align: left;"><strong><em>Análise de superfície 3D do </em></strong><strong style="color: var( --e-global-color-primary );"><em>Amostra padrão de rugosidade</em></strong></p>								</div>
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									<p style="text-align: left;">A superfície de um padrão de rugosidade foi escaneada usando um NANOVEA ST400 equipado com um sensor de alta velocidade que gera uma linha brilhante de 192 pontos, conforme mostrado na FIGURA 1. Esses 192 pontos escaneiam a superfície da amostra ao mesmo tempo, o que resulta em um aumento significativo da velocidade de escaneamento.</p>								</div>
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									<p style="text-align: left;">A FIGURA 2 mostra visualizações em falsa cor do Mapa de Altura da Superfície e do Mapa de Distribuição de Rugosidade da Amostra Padrão de Rugosidade. Na FIGURA 2a, o padrão de rugosidade exibe uma superfície ligeiramente inclinada, conforme representado pelo gradiente de cores variadas em cada um dos blocos de rugosidade padrão. Na FIGURA 2b, a distribuição homogênea da rugosidade é mostrada em diferentes blocos de rugosidade, cuja cor representa a rugosidade nos blocos.</p><p>A FIGURA 3 mostra os exemplos dos mapas de aprovação/reprovação gerados pelo software de análise com base em diferentes limites de rugosidade. Os blocos de rugosidade são destacados em vermelho quando a rugosidade da superfície está acima de um determinado valor limite definido. Isso fornece uma ferramenta para o usuário configurar um limite de rugosidade para determinar a qualidade do acabamento da superfície de uma amostra.</p>								</div>
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															<img loading="lazy" decoding="async" width="611" height="455" src="https://nanovea.com/wp-content/uploads/2023/05/Roughness-Standard-NANOVEA-Profilometer.jpg" class="attachment-large size-large wp-image-22023" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 1:</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Varredura do sensor de linha óptica na amostra Roughness Standard<br /></span></span></span></p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">a.</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Mapa de altura da superfície:<br /></span></span></span></p>								</div>
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															<img loading="lazy" decoding="async" width="631" height="517" src="https://nanovea.com/wp-content/uploads/2023/05/Surface-Height-Map-NANOVEA-Profilometer.jpg" class="attachment-large size-large wp-image-22024" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">b.</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Mapa de rugosidade:<br /></span></span></span></p>								</div>
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															<img loading="lazy" decoding="async" width="613" height="517" src="https://nanovea.com/wp-content/uploads/2023/05/Roughness-Map-NANOVEA-Profilom.jpg" class="attachment-large size-large wp-image-22030" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 2:</span><span class="fontstyle0" style="color: #000000;"> Visualizações em falsa cor do mapa de altura da superfície e do mapa de distribuição de rugosidade da amostra padrão de rugosidade.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="380" height="346" src="https://nanovea.com/wp-content/uploads/2023/05/In-Line-Roughness-Inspection.jpg" class="attachment-large size-large wp-image-22025" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="380" height="346" src="https://nanovea.com/wp-content/uploads/2023/05/Roughness-Inspection-Profilometer.jpg" class="attachment-large size-large wp-image-22029" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 3:</span><span class="fontstyle0" style="color: #000000;"> Mapa de aprovação/reprovação com base no limite de rugosidade.</span></p>								</div>
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									<p style="text-align: left;">Inspeção da superfície de uma amostra de teflon com defeitos</p>								</div>
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									<p style="text-align: left;">O Mapa de Altura da Superfície, o Mapa de Distribuição de Rugosidade e o Mapa de Limite de Rugosidade Aprovado/Reprovado da superfície da amostra Teflon são mostrados na FIGURA 4. A amostra de Teflon tem uma forma de cume no centro direito da amostra, conforme mostrado no mapa de altura da superfície.</p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">a.</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Mapa de altura da superfície:<br /></span></span></span></p>								</div>
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									<p style="text-align: left;">As diferentes cores na paleta da FIGURA 4b representam o valor da rugosidade na superfície local. O mapa de rugosidade exibe uma rugosidade homogênea na área intacta da amostra de Teflon. No entanto, os defeitos, na forma de um anel recuado e uma cicatriz de desgaste, são destacados em cores vivas. O usuário pode configurar facilmente um limite de rugosidade de Aprovado/Reprovado para localizar os defeitos de superfície, conforme mostrado na FIGURA 4c. Essa ferramenta permite aos usuários monitorar in situ a qualidade da superfície do produto na linha de produção e descobrir produtos defeituosos a tempo. O valor de rugosidade em tempo real é calculado e registrado à medida que os produtos passam pelo sensor óptico em linha, o que pode servir como uma ferramenta rápida e confiável para o controle de qualidade.</p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">b.</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Mapa de rugosidade:<br /></span></span></span></p>								</div>
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															<img loading="lazy" decoding="async" width="523" height="284" src="https://nanovea.com/wp-content/uploads/2023/05/NANOVEA-Profiler-Roughness-Map.jpg" class="attachment-large size-large wp-image-22026" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">c.</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Mapa de limiar de rugosidade de aprovação/reprovação:<br /></span></span></span></p>								</div>
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															<img loading="lazy" decoding="async" width="472" height="275" src="https://nanovea.com/wp-content/uploads/2023/05/Profilometer-Roughness-Inspection-NANOVEA.jpg" class="attachment-large size-large wp-image-22028" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 4:</span><span class="fontstyle0" style="color: #000000;"> Mapa de altura da superfície, mapa de distribuição de rugosidade e </span><span class="fontstyle0" style="color: #000000;">Mapa de limiar de rugosidade de aprovação/reprovação da superfície da amostra do Teflon.</span></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSÃO</h2>				</div>
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									<p>Nessa aplicação, mostramos como o NANOVEA ST400 3D Non-Contact Optical Profiler equipado com um sensor de linha óptica funciona como uma ferramenta confiável de controle de qualidade de maneira eficaz e eficiente.</p><p>O sensor de linha óptica gera uma linha brilhante de 192 pontos que escaneiam a superfície da amostra ao mesmo tempo, o que resulta em um aumento significativo da velocidade de escaneamento. Ele pode ser instalado na linha de produção para monitorar a rugosidade da superfície dos produtos in situ. O limite de rugosidade funciona como um critério confiável para determinar a qualidade da superfície dos produtos, permitindo que os usuários percebam os produtos defeituosos a tempo.</p><p>Os dados mostrados aqui representam apenas uma parte dos cálculos disponíveis no software de análise. Os Profilômetros NANOVEA medem praticamente qualquer superfície em campos como Semicondutores, Microeletrônica, Solar, Fibra Ótica, Automotivo, Aeroespacial, Metalurgia, Usinagem, Revestimentos, Farmacêutico, Biomédico, Ambiental e muitos outros.</p>								</div>
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				</div><p>The post <a href="https://nanovea.com/pt/inspeccao-da-rugosidade-do-mapeamento-utilizando-a-profilometria-3d/">Roughness Mapping Inspection using 3D Profilometry</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Inspeção de superfície de solda usando um Perfilômetro portátil 3D</title>
		<link>https://nanovea.com/pt/soldadura-superficie-usa-umaportatil-3d-profilometro/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=weld-surface-inspection-using-a-portable-3d-profilometer</link>
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		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Qui, 14 de julho de 2022 15:16:39 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Flatness and Warpage]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Volume and Area]]></category>
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		<guid ispermalink="false">https://nanovea.com/?p=21138</guid>

					<description><![CDATA[<p>WELd surface inspection using a portable 3d profilometer Prepared by CRAIG LEISING INTRODUCTION It may become critical for a particular weld, typically done by visual inspection, to be investigated with an extreme level of precision. Specific areas of interest for precise analysis include surface cracks, porosity and unfilled craters, regardless of subsequent inspection procedures. Weld [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/soldadura-superficie-usa-umaportatil-3d-profilometro/">Weld Surface Inspection Using a Portable 3D Profilometer</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="21138" class="elementor elementor-21138" data-elementor-post-type="post">
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					<h1 class="elementor-heading-title elementor-size-default">Inspeção de superfície WELd</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">usando um profilômetro portátil 3d</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="217" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-Surface-Inspection.jpg" class="attachment-medium_large size-medium_large wp-image-21147" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparado por</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">CRAIG LEISING</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUÇÃO</h2>				</div>
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									<p>Pode tornar-se crítico que uma determinada solda, normalmente feita por inspeção visual, seja investigada com um nível extremo de precisão. Áreas específicas de interesse para análises precisas incluem fissuras superficiais, porosidade e crateras não preenchidas, independentemente dos procedimentos de inspeção subseqüentes. As características da solda, tais como dimensão/formato, volume, rugosidade, tamanho, etc., podem ser todas medidas para avaliação crítica.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTÂNCIA DO PROFILÔMETRO 3D SEM CONTATO PARA A INSPEÇÃO DA SUPERFÍCIE DE SOLDA</h2>				</div>
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									<p>Ao contrário de outras técnicas, como sondas de toque ou interferometria, o NANOVEA <a href="https://nanovea.com/profilometers/">Perfilômetro 3D sem contato</a>, usando cromatismo axial, pode medir praticamente qualquer superfície, os tamanhos das amostras podem variar amplamente devido ao preparo aberto e não há necessidade de preparação da amostra. A faixa nano a macro é obtida durante a medição do perfil da superfície com influência zero da refletividade ou absorção da amostra, possui capacidade avançada para medir ângulos de superfície elevados e não há manipulação de resultados por software. Meça facilmente qualquer material: transparente, opaco, especular, difusivo, polido, áspero, etc. Os recursos 2D e 2D dos perfilômetros portáteis NANOVEA os tornam instrumentos ideais para inspeção completa da superfície da solda, tanto no laboratório quanto no campo.</p>								</div>
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									<p style="text-align: left;">OBJETIVO DA MEDIÇÃO</p>								</div>
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									<p>Nesta aplicação, o perfilador portátil NANOVEA JR25 é utilizado para medir a rugosidade da superfície, forma e volume de uma solda, bem como a área circundante. Estas informações podem fornecer informações críticas para investigar adequadamente a qualidade da solda e do processo de soldagem.</p>								</div>
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									<p style="text-align: left;">NANOVEA</p>								</div>
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									<p style="text-align: left;">JR25</p>								</div>
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									<span class="elementor-button-text">SAIBA MAIS</span>
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																<a href="https://nanovea.com/instruments/jr25/">
							<img loading="lazy" decoding="async" width="664" height="733" src="https://nanovea.com/wp-content/uploads/2021/08/NANOVEA-Jr25-Portable-Profilometer.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-12966" alt="" />								</a>
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									<p>A imagem abaixo mostra a visão 3D completa da solda e da área circundante juntamente com os parâmetros de superfície da solda apenas. O perfil da seção transversal 2D é mostrado abaixo.</p>								</div>
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															<img loading="lazy" decoding="async" width="461" height="370" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-Surface-Analysis.jpg" class="attachment-large size-large wp-image-21144" alt="" />															</div>
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									<p><em><strong>a amostra</strong></em></p>								</div>
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															<img loading="lazy" decoding="async" width="813" height="495" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-Surface-Inspection-Scan.jpg" class="attachment-large size-large wp-image-21146" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="299" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-Surface-Inspection-Profile.jpg" class="attachment-large size-large wp-image-21145" alt="" />															</div>
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									<p>Com o perfil de seção transversal 2D acima removido do 3D, as informações dimensionais da solda são calculadas abaixo. Área de superfície e volume de material calculado para a solda somente abaixo.</p>								</div>
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															<img loading="lazy" decoding="async" width="836" height="500" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-quality-Control.jpg" class="attachment-large size-large wp-image-21143" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="558" height="454" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-Surface-Profilometry.jpg" class="attachment-large size-large wp-image-21148" alt="" />															</div>
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									<table class="aligncenter" style="width: 100%; border-collapse: collapse;"><tbody><tr><td style="width: 33.3333%;"> </td><td style="width: 33.3333%;"><em><strong style="color: #1b96cf;">HOLE</strong></em></td><td style="width: 33.3333%;"><em><strong style="color: #1b96cf;">PEAK</strong></em></td></tr><tr><td style="width: 33.3333%; text-align: right;"><em><strong style="color: #1b96cf;">SUPERFÍCIE</strong></em></td><td style="width: 33.3333%;"><em><strong>1,01 mm<sup>2</sup></strong></em></td><td style="width: 33.3333%;"><em><strong>14,0 mm<sup>2</sup></strong></em></td></tr><tr><td style="width: 33.3333%; text-align: right;"><em><strong style="color: #1b96cf;">VOLUME</strong></em></td><td style="width: 33.3333%;"><em><strong>8.799e-5 mm<sup>3</sup></strong></em></td><td style="width: 33.3333%;"><em><strong>23,27 mm<sup>3</sup></strong></em></td></tr><tr><td style="width: 33.3333%; text-align: right;"><em><strong style="color: #1b96cf;">PROFUNDIDADE/ALTURA MÁXIMA</strong></em></td><td style="width: 33.3333%;"><em><strong>0,0276 mm</strong></em></td><td style="width: 33.3333%;"><em><strong>0,6195 mm</strong></em></td></tr><tr><td style="width: 33.3333%; text-align: right;"><em><strong style="color: #1b96cf;">PROFUNDIDADE/ALTURA MÉDIA</strong></em></td><td style="width: 33.3333%;"><em><strong> <span class="fontstyle0">0,004024 mm</span> </strong></em></td><td style="width: 33.3333%;"><em><strong> <span class="fontstyle0">0,2298 mm</span> </strong></em></td></tr></tbody></table>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSÃO</h2>				</div>
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									<p>Nesta aplicação, mostramos como o NANOVEA 3D Non-Contact Profiler pode caracterizar com precisão as características críticas de uma solda e a área de superfície circundante. A partir da rugosidade, dimensões e volume, um método quantitativo de qualidade e repetibilidade pode ser determinado e ou investigado mais detalhadamente. As amostras de solda, como o exemplo nesta nota de aplicação, podem ser facilmente analisadas, com uma mesa padrão ou com o Profiler NANOVEA portátil para testes internos ou de campo.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Tem um aplicativo semelhante?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/pt/soldadura-superficie-usa-umaportatil-3d-profilometro/">Weld Surface Inspection Using a Portable 3D Profilometer</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Avaliação de Riscos e Desgaste de Revestimentos Industriais</title>
		<link>https://nanovea.com/pt/industrial-coatings-scratch-and-wear-evaluation/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=industrial-coatings-scratch-and-wear-evaluation</link>
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		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Sex, 27 de maio de 2022 22:23:41 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Friction Testing | Coefficient of Friction]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Mechanical Testing]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<category><![CDATA[Rotational Tribology]]></category>
		<category><![CDATA[Scratch Testing | Adhesive Failure]]></category>
		<category><![CDATA[Scratch Testing | Cohesive Failure]]></category>
		<category><![CDATA[Tribology Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=20021</guid>

					<description><![CDATA[<p>INDUSTRIAL COATING SCRATCH AND WEAR EVALUATION USING A TRIBOMETER Prepared by DUANJIE LI, PhD &#38; ANDREA HERRMANN INTRODUCTION Acrylic urethane paint is a type of fast-dry protective coating widely used in a variety of industrial applications, such as floor paint, auto paint, and others. When used as floor paint, it can serve areas with heavy [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/industrial-coatings-scratch-and-wear-evaluation/">Industrial Coatings Scratch and Wear Evaluation</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="20021" class="elementor elementor-20021" data-elementor-post-type="post">
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					<h1 class="elementor-heading-title elementor-size-default">REVESTIMENTO INDUSTRIAL</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">AVALIAÇÃO DE ARRANHÕES E DESGASTE USANDO UM TRIBÔMETRO</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="242" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Coatings-Evaluation.jpg" class="attachment-medium_large size-medium_large wp-image-20025" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparado por</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">DUANJIE LI, PhD &amp; ANDREA HERRMANN</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUÇÃO</h2>				</div>
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									<p>A tinta acrílica uretânica é um tipo de revestimento de proteção de secagem rápida amplamente utilizado em uma variedade de aplicações industriais, como pintura de piso, pintura automotiva e outras. Quando usada como tinta de piso, pode servir áreas com tráfego intenso de pés e rodas de borracha, tais como passarelas, calçadas e estacionamentos.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTÂNCIA DOS TESTES DE ARRANHÕES E DESGASTE PARA O CONTROLE DE QUALIDADE</h2>				</div>
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									<p>Tradicionalmente, eram realizados testes de abrasão Taber para avaliar a resistência ao desgaste da tinta acrílica uretânica para piso de acordo com a norma ASTM D4060. Entretanto, como mencionado na norma, "Para alguns materiais, os testes de abrasão utilizando o Abraser Taber podem estar sujeitos a variações devido a mudanças nas características abrasivas do rebolo durante os testes "1. Isto pode resultar em má reprodutibilidade dos resultados dos testes e criar dificuldade na comparação dos valores relatados por diferentes laboratórios. Além disso, nos testes de abrasão Taber, a resistência à abrasão é calculada como perda de peso em um número especificado de ciclos de abrasão. Entretanto, as tintas acrílicas de uretano para piso têm uma espessura de película seca recomendada de 37,5-50 μm2.</p><p>O processo de abrasão agressivo da Taber Abraser pode desgastar rapidamente o revestimento de uretano acrílico e gerar perda de massa para o substrato, levando a erros substanciais no cálculo da perda de peso da tinta. O implante de partículas abrasivas na tinta durante o teste de abrasão também contribui para os erros. Portanto, uma medição bem controlada, quantificável e confiável é fundamental para garantir uma avaliação reprodutível do desgaste da tinta. Além disso, a <a href="https://nanovea.com/scratch-tester/">teste de raspagem</a> permite que os usuários detectem falhas prematuras de adesivos/coesivos em aplicações reais.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-bbe0c25 elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="bbe0c25" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">OBJETIVO DA MEDIÇÃO</h2>				</div>
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									<p>Neste estudo, mostramos que NANOVEA <a href="https://nanovea.com/tribometers/">Tribômetros </a>e <a href="https://nanovea.com/mechanical-testers/">Testadores Mecânicos</a> são ideais para avaliação e controle de qualidade de revestimentos industriais.</p>
<p>O processo de desgaste das tintas acrílicas de uretano para pisos com diferentes camadas de acabamento é simulado de forma controlada e monitorada usando o Tribômetro NANOVEA. O teste de micro-risco é usado para medir a carga necessária para causar falha coesiva ou adesiva na tinta.</p>								</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-5986dd7 elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="5986dd7" data-element_type="section">
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																<a href="https://nanovea.com/instruments/t100/">
							<img loading="lazy" decoding="async" width="763" height="800" src="https://nanovea.com/wp-content/uploads/2020/12/Nanovea-T100-Affordable-Tribometer.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-9908" alt="Tribômetro Pneumático Compacto T100" />								</a>
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									<span style="color: #000000;">NANOVEA </span><span style="color: #1b96cf;">T100</span>								</div>
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									<p style="text-align: center;">O Tribômetro Pneumático Compacto</p>								</div>
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									<span class="elementor-button-text">SAIBA MAIS</span>
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																<a href="https://nanovea.com/instruments/pb1000/">
							<img loading="lazy" decoding="async" width="600" height="595" src="https://nanovea.com/wp-content/uploads/2022/05/NANOVEA-Mechanical-Tester-PB1000.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-20051" alt="" />								</a>
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									<p style="text-align: center;"><span style="color: #000000;">NANOVEA </span><span style="color: #1b96cf;">PB1000</span></p>								</div>
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									<p style="text-align: center;">O Testador Mecânico de Grandes Plataformas</p>								</div>
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					<a class="elementor-button elementor-button-link elementor-size-md" href="https://nanovea.com/instruments/pb1000/" id="learn-more-about-instrument">
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									<span class="elementor-button-text">SAIBA MAIS</span>
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					<h2 class="elementor-heading-title elementor-size-default">PROCEDIMENTO DE TESTE</h2>				</div>
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									<p style="text-align: left;">Este estudo avalia quatro revestimentos de piso acrílico à base de água disponíveis comercialmente que têm o mesmo primário (camada de base) e diferentes camadas de acabamento da mesma fórmula com uma pequena alternância nas misturas de aditivos com o objetivo de aumentar a durabilidade. Estes quatro revestimentos são identificados como amostras A, B, C e D.</p>								</div>
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															<img loading="lazy" decoding="async" width="1024" height="436" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Paint-Tribology.jpg" class="attachment-large size-large wp-image-20036" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">TESTE DE GUERRA</h2>				</div>
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									<p style="text-align: left;">O Tribômetro NANOVEA foi aplicado para avaliar o comportamento tribológico, por exemplo, coeficiente de atrito, COF e resistência ao desgaste. Uma ponta esférica SS440 (6 mm de diâmetro, Grau 100) foi aplicada contra as tintas testadas. O COF foi registrado in situ. A taxa de desgaste, K, foi avaliada usando a fórmula K=V/(F×s)=A/(F×n), onde V é o volume desgastado, F é a carga normal, s é a distância de deslizamento, A é a área da seção transversal da trilha de desgaste e n é o número de revoluções. A rugosidade superficial e os perfis de desgaste foram avaliados pelo NANOVEA <a href="https://nanovea.com/profilometers/">Perfilômetro Óptico</a>, e a morfologia da trilha de desgaste foi examinada usando microscópio óptico.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-df053de elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="df053de" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">PARÂMETROS DE TESTE DE DESGASTE</h2>				</div>
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									<p>FORÇA NORMAL</p>								</div>
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									<p>20 N</p>								</div>
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									<p>SPEED</p>								</div>
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									<p>15 m/min</p>								</div>
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									<p>DURAÇÃO DO TESTE</p>								</div>
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									<p>100, 150, 300 e 800 ciclos</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-575156f elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="575156f" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">TESTE DE SCRATCH</h2>				</div>
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									<p style="text-align: left;">O Testador Mecânico NANOVEA equipado com uma ponta de diamante Rockwell C (raio de 200 μm) foi usado para realizar testes progressivos de risco de carga nas amostras de tinta usando o Modo Testador de Micro-Risco. Duas cargas finais foram usadas: 5 N de carga final para investigar a delaminação da tinta a partir do primer, e 35 N para investigar a delaminação do primer a partir dos substratos metálicos. Três testes foram repetidos nas mesmas condições de teste em cada amostra para garantir a reprodutibilidade dos resultados.</p><p style="text-align: left;">Imagens panorâmicas de todo o comprimento dos arranhões foram geradas automaticamente e suas localizações críticas de falha foram correlacionadas com as cargas aplicadas pelo software do sistema. Esta característica do software facilita aos usuários realizar análises nos rastros de risco a qualquer momento, em vez de ter que determinar a carga crítica sob o microscópio imediatamente após os testes de risco.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-4f2abf8 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="4f2abf8" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">PARÂMETROS DE TESTE DE ARRANHÕES</h2>				</div>
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									<table style="width: 100%;"><tbody><tr><td style="text-align: left; width: 67.7419%;"><em><strong>TIPO CARREGADO</strong></em></td><td style="width: 29.912%; text-align: right;"><em><strong>Progressivo</strong></em></td></tr><tr><td style="text-align: left; width: 67.7419%;"><em><strong>CARGA INICIAL</strong></em></td><td style="width: 29.912%; text-align: right;"><em><strong>0,01 mN</strong></em></td></tr><tr><td style="text-align: left; width: 67.7419%;"><em><strong>CARGA FINAL</strong></em></td><td style="width: 29.912%; text-align: right;"><em><strong>5 N / 35 N</strong></em></td></tr><tr><td style="text-align: left; width: 67.7419%;"><em><strong>TAXA DE CARREGAMENTO</strong></em></td><td style="width: 29.912%; text-align: right;"><em><strong>10 / 70 N/min</strong></em></td></tr><tr><td style="text-align: left; width: 67.7419%;"><em><strong>COMPRIMENTO DE SCRATCH</strong></em></td><td style="width: 29.912%; text-align: right;"><em><strong>3 mm</strong></em></td></tr><tr><td style="text-align: left; width: 67.7419%;"><em><strong>VELOCIDADE DE REPRESENTAÇÃO, dx/dt</strong></em></td><td style="width: 29.912%; text-align: right;"><em><strong>6,0 mm/min</strong></em></td></tr><tr><td style="text-align: left; width: 67.7419%;"><em><strong>GEOMETRIA INDENTER</strong></em></td><td style="width: 29.912%; text-align: right;"><em><strong>120º cone</strong></em></td></tr><tr><td style="text-align: left; width: 67.7419%;"><em><strong>MATERIAL INDENTERIAL (dica)</strong></em></td><td style="width: 29.912%; text-align: right;"><em><strong>Diamante</strong></em></td></tr><tr><td style="text-align: left; width: 67.7419%;"><em><strong>RAIO DA PONTA INDENTADA</strong></em></td><td style="width: 29.912%; text-align: right;"><em><strong>200 μm</strong></em></td></tr></tbody></table>								</div>
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		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-1fa8af8 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="1fa8af8" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">RESULTADOS DO TESTE DE DESGASTE</h2>				</div>
				</div>
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									<p style="text-align: justify;">Quatro testes de desgaste pino-a-disco em diferentes números de rotações (100, 150, 300 e 800 ciclos) foram realizados em cada amostra, a fim de monitorar a evolução do desgaste. A morfologia da superfície das amostras foi medida com um Profiler NANOVEA 3D sem contato para quantificar a rugosidade da superfície antes da realização dos testes de desgaste. Todas as amostras tinham uma rugosidade de superfície comparável de aproximadamente 1 μm, como mostrado na FIGURA 1. O COF foi registrado in situ durante os testes de desgaste, como mostrado na FIGURA 2. O FIGURA 4 apresenta a evolução das pistas de desgaste após 100, 150, 300 e 800 ciclos, e o FIGURA 3 resumiu a taxa média de desgaste de diferentes amostras em diferentes estágios do processo de desgaste.</p><p> </p><p style="text-align: justify;">Em comparação com um valor COF de ~0,07 para as outras três amostras, a Amostra A exibe um COF muito mais alto de ~0,15 no início, que aumenta gradualmente e se estabiliza em ~0,3 após 300 ciclos de desgaste. Um COF tão alto acelera o processo de desgaste e cria uma quantidade substancial de resíduos de tinta como indicado na FIGURA 4 - a camada superior da Amostra A começou a ser removida nas primeiras 100 revoluções. Como mostrado na FIGURA 3, a amostra A apresenta a maior taxa de desgaste de ~5 μm2/N nos primeiros 300 ciclos, que diminui ligeiramente para ~3,5 μm2/N devido à melhor resistência ao desgaste do substrato metálico. A camada superior da Amostra C começa a falhar após 150 ciclos de desgaste, como mostrado na FIGURA 4, o que também é indicado pelo aumento de COF na FIGURA 2.</p><p> </p><p style="text-align: justify;">Em comparação, a amostra B e a amostra D mostram propriedades tribológicas aprimoradas. A Amostra B mantém um COF baixo durante todo o teste - o COF aumenta ligeiramente de~0,05 para ~0,1. Tal efeito lubrificante aumenta substancialmente sua resistência ao desgaste - a camada superior ainda proporciona proteção superior ao primer por baixo, após 800 ciclos de desgaste. A menor taxa média de desgaste de apenas ~0,77 μm2/N é medida para a Amostra B a 800 ciclos. A camada superior da Amostra D começa a delaminar após 375 ciclos, como refletido pelo aumento abrupto do COF na FIGURA 2. A taxa média de desgaste da Amostra D é de ~1,1 μm2/N a 800 ciclos.</p><p> </p><p style="text-align: justify;">Em comparação com as medidas convencionais de abrasão Taber, o Tribômetro NANOVEA fornece avaliações de desgaste quantificáveis e confiáveis bem controladas que garantem avaliações reprodutíveis e controle de qualidade de tintas comerciais para pisos/auto pinturas. Além disso, a capacidade de medições in situ do COF permite aos usuários correlacionar as diferentes etapas de um processo de desgaste com a evolução do COF, o que é fundamental para melhorar a compreensão fundamental do mecanismo de desgaste e das características tribológicas de vários revestimentos de tintas.</p>								</div>
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		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-7311885 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="7311885" data-element_type="section">
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						<section class="elementor-section elementor-inner-section elementor-element elementor-element-f59c5b1 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="f59c5b1" data-element_type="section">
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															<img loading="lazy" decoding="async" width="366" height="345" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Coatings-Profilometry.jpg" class="attachment-large size-large wp-image-20026" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="366" height="345" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Coatings-Roughness.jpg" class="attachment-large size-large wp-image-20027" alt="" />															</div>
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		</section>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-feddc4b elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="feddc4b" data-element_type="section">
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															<img loading="lazy" decoding="async" width="366" height="345" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Paint-Roughness.jpg" class="attachment-large size-large wp-image-20031" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="366" height="345" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Paint-Testing.jpg" class="attachment-large size-large wp-image-20035" alt="" />															</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<div class="elementor-element elementor-element-4103861 elementor-widget elementor-widget-text-editor" data-id="4103861" data-element_type="widget" data-widget_type="text-editor.default">
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 1: </span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0">Morfologia 3D e rugosidade das amostras de tinta.</span>
</span></span></p>								</div>
				</div>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-eea6b5a elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="eea6b5a" data-element_type="section">
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															<img loading="lazy" decoding="async" width="719" height="508" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Coatings-COF.jpg" class="attachment-large size-large wp-image-20024" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 2: </span><span style="color: #000000;"><span class="fontstyle0">COF durante os testes pin-on-disk.</span></span></p>								</div>
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				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-5864534" data-id="5864534" data-element_type="column">
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															<img loading="lazy" decoding="async" width="719" height="508" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Coating-Wear-Test.jpg" class="attachment-large size-large wp-image-20023" alt="" />															</div>
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				<div class="elementor-element elementor-element-6f42a0a elementor-widget elementor-widget-text-editor" data-id="6f42a0a" data-element_type="widget" data-widget_type="text-editor.default">
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 3: </span><span style="color: #000000;"><span class="fontstyle0">Evolução da taxa de desgaste de diferentes tintas.</span></span></p>								</div>
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		</section>
				<div class="elementor-element elementor-element-4015260 elementor-widget elementor-widget-image" data-id="4015260" data-element_type="widget" data-widget_type="image.default">
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															<img loading="lazy" decoding="async" width="1024" height="801" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Paint-Wear-Test.jpg" class="attachment-large size-large wp-image-20037" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 4: </span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0">Evolução das pistas de desgaste durante os testes pin-on-disk.</span>
</span></span></p>								</div>
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		</div>
					</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-ec03633 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="ec03633" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">RESULTADOS DO TESTE DE RASPAGEM</h2>				</div>
				</div>
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									<p style="text-align: justify;">O FIGURA 5 mostra a trama de força normal, força de fricção e profundidade verdadeira em função do comprimento do risco para a Amostra A como exemplo. Um módulo opcional de emissão acústica pode ser instalado para fornecer mais informações. Conforme a carga normal aumenta linearmente, a ponta de recuo afunda gradualmente na amostra testada, conforme refletido pelo aumento progressivo da profundidade verdadeira. A variação nas inclinações da força de atrito e das curvas de profundidade verdadeira pode ser usada como uma das implicações que as falhas no revestimento começam a ocorrer.</p>								</div>
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															<img loading="lazy" decoding="async" width="926" height="495" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Coating-Scratch-Test.jpg" class="attachment-large size-large wp-image-20044" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 5: </span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0">Força normal, força de fricção e profundidade verdadeira em função do comprimento do arranhão para
teste de risco da amostra A com uma carga máxima de 5 N.</span>
</span></span></p>								</div>
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				<div class="elementor-element elementor-element-4762328 elementor-widget elementor-widget-text-editor" data-id="4762328" data-element_type="widget" data-widget_type="text-editor.default">
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									<p style="text-align: justify;">FIGURA 6 e FIGURA 7 mostram os riscos completos de todas as quatro amostras de tinta testadas com uma carga máxima de 5 N e 35 N, respectivamente. A amostra D exigiu uma carga maior de 50 N para delaminar o primer. Os testes de arranhões com carga final de 5 N (FIGURA 6) avaliam a falha coesiva/adesiva da tinta superior, enquanto os testes com 35 N (FIGURA 7) avaliam a delaminação do primer. As setas nas micrografias indicam o ponto em que o revestimento superior ou o primer começa a ser completamente removido do primer ou do substrato. A carga neste ponto, denominada Carga Crítica, Lc, é usada para comparar as propriedades coesivas ou adesivas da tinta, conforme resumido na Tabela 1.</p><p style="text-align: justify;"> </p><p style="text-align: justify;">É evidente que a amostra de tinta D tem a melhor aderência interfacial - apresentando os maiores valores de Lc de 4,04 N na delaminação da tinta e 36,61 N na delaminação de primer. A amostra B mostra a segunda melhor resistência a arranhões. A partir da análise de risco, mostramos que a otimização da fórmula da tinta é crítica para os comportamentos mecânicos, ou mais especificamente, a resistência a riscos e a propriedade de adesão das tintas acrílicas para piso.</p>								</div>
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				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="1024" height="225" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Paint-QC.jpg" class="attachment-large size-large wp-image-20030" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Tabela 1: </span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0">Resumo das cargas críticas.</span>
</span></span></p>								</div>
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					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-39ae57e elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="39ae57e" data-element_type="section">
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															<img loading="lazy" decoding="async" width="1024" height="196" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Coating-Scratch.jpg" class="attachment-large size-large wp-image-20042" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="198" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Coating-Scratch-Testing.jpg" class="attachment-large size-large wp-image-20041" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="198" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Coating-Scratch-Tester.jpg" class="attachment-large size-large wp-image-20040" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="198" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Coating-Scratch-QC-Test.jpg" class="attachment-large size-large wp-image-20039" alt="" />															</div>
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				<div class="elementor-element elementor-element-b136a8f elementor-widget elementor-widget-text-editor" data-id="b136a8f" data-element_type="widget" data-widget_type="text-editor.default">
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 6: </span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0">Micrográficos de arranhão total com carga máxima de 5 N.</span>
</span></span></p>								</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-3dd028d elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="3dd028d" data-element_type="section">
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															<img loading="lazy" decoding="async" width="1024" height="198" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Paint-Scratch-Test.jpg" class="attachment-large size-large wp-image-20033" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="198" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Paint-Scratch-Testing.jpg" class="attachment-large size-large wp-image-20034" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="198" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Paint-Lab-Testing.jpg" class="attachment-large size-large wp-image-20029" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="148" src="https://nanovea.com/wp-content/uploads/2022/05/Industrial-Paint-Scratch-QC-Test.jpg" class="attachment-large size-large wp-image-20032" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 7: </span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0">Micrográficos de arranhão total com carga máxima de 35 N.</span>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSÃO</h2>				</div>
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									<p style="text-align: justify;">Em comparação com as medidas convencionais de abrasão Taber, o NANOVEA Mechanical Tester and Tribometer são ferramentas superiores para avaliação e controle de qualidade de pisos comerciais e revestimentos automotivos. O Testador Mecânico NANOVEA no modo Scratch pode detectar problemas de aderência/coesão em um sistema de revestimento. O Tribômetro NANOVEA fornece análises tribológicas quantificáveis e repetíveis bem controladas sobre a resistência ao desgaste e o coeficiente de atrito das tintas.</p><p> </p><p>Com base nas análises tribológicas e mecânicas abrangentes sobre os revestimentos acrílicos à base de água para pisos testados neste estudo, mostramos que a amostra B possui a menor taxa de COF e desgaste e a segunda melhor resistência a riscos, enquanto a amostra D exibe a melhor resistência a riscos e a segunda melhor resistência ao desgaste. Esta avaliação nos permite avaliar e selecionar o melhor candidato, visando as necessidades em diferentes ambientes de aplicação.</p><p> </p><p>Os módulos Nano e Micro do Testador Mecânico NANOVEA incluem todos os modos de indentação, teste de arranhões e desgaste em conformidade com a ISO e ASTM, proporcionando a mais ampla gama de testes disponíveis para avaliação de pintura em um único módulo. O Tribômetro NANOVEA oferece testes de desgaste e atrito precisos e repetíveis usando os modos rotativo e linear conforme ISO e ASTM, com módulos opcionais de desgaste em alta temperatura, lubrificação e tribo-corrosão disponíveis em um sistema pré-integrado. A gama inigualável da NANOVEA é uma solução ideal para determinar a gama completa de propriedades mecânicas/tribológicas de revestimentos, filmes e substratos finos ou grossos, macios ou duros, incluindo dureza, módulo Young, resistência à fratura, aderência, resistência ao desgaste e muitos outros. Os Profilers Opcionais NANOVEA Non-Contact Optical Profilers estão disponíveis para imagens 3D de alta resolução de rastros de arranhões e desgaste, além de outras medidas de superfície, como rugosidade.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default"><b>AGORA, VAMOS FALAR SOBRE SUA APLICAÇÃO</b></h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/pt/industrial-coatings-scratch-and-wear-evaluation/">Industrial Coatings Scratch and Wear Evaluation</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Análise de Fractografia usando a Perfilometria 3D</title>
		<link>https://nanovea.com/pt/fractografia-analise-utilizacao-3d-profilometria/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=fractography-analysis-using-3d-profilometry</link>
					<comments>https://nanovea.com/pt/fractografia-analise-utilizacao-3d-profilometria/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Ter, 05 de abril de 2022 17:27:55 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry | Volume and Area]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=18527</guid>

					<description><![CDATA[<p>FRACTOGRAPHY ANALYSIS USING 3D PROFILOMETRY Prepared by CRAIG LEISING INTRODUCTION Fractography is the study of features on fractured surfaces and has historically been investigated via Microscope or SEM. Depending on the size of the feature, a microscope (macro features) or SEM (nano and micro features) are selected for the surface analysis. Both ultimately allowing for [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/fractografia-analise-utilizacao-3d-profilometria/">Fractography Analysis Using 3D Profilometry</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="18527" class="elementor elementor-18527" data-elementor-post-type="post">
						<section class="elementor-section elementor-top-section elementor-element elementor-element-7ec3d48 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="7ec3d48" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">ANÁLISE DA FRACTOGRAFIA</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">USANDO A PROFILOMETRIA 3D</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="217" src="https://nanovea.com/wp-content/uploads/2022/04/Metal-Fracture-Inspection.jpg" class="attachment-medium_large size-medium_large wp-image-18498" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparado por</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">CRAIG LEISING</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUÇÃO</h2>				</div>
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									<p>A fractografia é o estudo de características em superfícies fraturadas e tem sido historicamente investigada via microscópio ou SEM. Dependendo do tamanho do recurso, um microscópio (recursos macro) ou SEM (recursos nano e micro) são selecionados para a análise de superfície. Em última análise, ambos permitem a identificação do tipo de mecanismo de fratura. Embora eficaz, o microscópio tem limitações claras e o SEM na maioria dos casos, além da análise em nível atômico, é impraticável para medição de superfície de fratura e carece de capacidade de uso mais ampla. Com os avanços na tecnologia de medição óptica, o NANOVEA <a href="https://nanovea.com/profilometers/">Perfilômetro 3D sem contato</a> é agora considerado o instrumento de escolha, com sua capacidade de fornecer nanometria por meio de medições de superfície 2D e 3D em macroescala</p>								</div>
				</div>
				<div class="elementor-element elementor-element-c9a07fb elementor-widget elementor-widget-heading" data-id="c9a07fb" data-element_type="widget" data-widget_type="heading.default">
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTÂNCIA DO PROFILÔMETRO 3D SEM CONTATO PARA A INSPEÇÃO DE FRATURAS</h2>				</div>
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									<p>Ao contrário de um SEM, um Perfilômetro 3D sem contato pode medir quase qualquer superfície, tamanho de amostra, com o mínimo de preparação de amostra, tudo isso enquanto oferece dimensões verticais/horizontais superiores às de um SEM. Com um perfilador, as características de nano através de macro range são capturadas em uma única medição com influência zero da refletividade da amostra. Mede facilmente qualquer material: transparente, opaco, especular, difusivo, polido, rugoso, etc. O Profilômetro 3D sem contato oferece uma ampla e amigável capacidade para maximizar os estudos de fratura superficial a uma fração do custo de um SEM.</p>								</div>
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									<p style="text-align: left;">OBJETIVO DA MEDIÇÃO</p>								</div>
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									<p>Nesta aplicação, o NANOVEA ST400 é utilizado para medir a superfície fraturada de uma amostra de aço. Neste estudo, mostraremos uma área 3D, extração do perfil 2D e mapa direcional da superfície.</p>								</div>
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									<p style="text-align: left;">NANOVEA</p>								</div>
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									<p style="text-align: left;">ST400</p>								</div>
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									<span class="elementor-button-text">SAIBA MAIS</span>
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																<a href="https://nanovea.com/instruments/st400">
							<img loading="lazy" decoding="async" width="768" height="756" src="https://nanovea.com/wp-content/uploads/2020/12/Nanovea-Customizable-Profilometer.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-9779" alt="Profilômetro óptico 3D Nanovea ST400 para análise da profundidade da banda de rodagem e da rugosidade da superfície de pneus" />								</a>
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					<h2 class="elementor-heading-title elementor-size-default">RESULTADOS</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">SUPERFÍCIE TOP SUPERFÍCIE</h2>				</div>
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		</section>
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															<img loading="lazy" decoding="async" width="941" height="509" src="https://nanovea.com/wp-content/uploads/2022/04/Metal-Fracture-Analysis.jpg" class="attachment-large size-large wp-image-18497" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Direção da textura da superfície 3D</h2>				</div>
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															<img loading="lazy" decoding="async" width="429" height="210" src="https://nanovea.com/wp-content/uploads/2022/04/3D-Surface-Direction-Mapping.jpg" class="attachment-large size-large wp-image-18509" alt="" />															</div>
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									<table style="width: 100.868%;"><tbody><tr><td style="width: 65.1042%;">Isotropia</td><td style="width: 121.875%;">51.26%</td></tr><tr><td style="width: 65.1042%;">Primeira Direção</td><td style="width: 121.875%;">123.2º</td></tr><tr><td style="width: 65.1042%;">Segunda Direção</td><td style="width: 121.875%;">116.3º</td></tr><tr><td style="width: 65.1042%;">Terceira direção</td><td style="width: 121.875%;">0.1725º</td></tr></tbody></table>								</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-f9fa7d0 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="f9fa7d0" data-element_type="section">
						<div class="elementor-container elementor-column-gap-default">
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						<div class="elementor-element elementor-element-ab1a26c elementor-widget elementor-widget-image" data-id="ab1a26c" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="854" height="273" src="https://nanovea.com/wp-content/uploads/2022/04/Fractography-Profilometer-Study.jpg" class="attachment-large size-large wp-image-18493" alt="" />															</div>
				</div>
				<div class="elementor-element elementor-element-ecc9c0a elementor-widget elementor-widget-text-editor" data-id="ecc9c0a" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<p><span class="fontstyle0">Área de superfície, volume, rugosidade e muitos outros podem ser calculados automaticamente a partir desta extração.</span> </p>								</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-6e6e18f" data-id="6e6e18f" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-56bc628 elementor-widget elementor-widget-heading" data-id="56bc628" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Extração de perfil 2D</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-9bb102b elementor-widget elementor-widget-image" data-id="9bb102b" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="430" height="255" src="https://nanovea.com/wp-content/uploads/2022/04/Fractography-Analysis.jpg" class="attachment-large size-large wp-image-18491" alt="" />															</div>
				</div>
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		</section>
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		</div>
					</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-0d1d40f elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="0d1d40f" data-element_type="section">
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						<section class="elementor-section elementor-inner-section elementor-element elementor-element-d789db6 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="d789db6" data-element_type="section">
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					<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-d5d6ed5" data-id="d5d6ed5" data-element_type="column" data-settings="{&quot;background_background&quot;:&quot;classic&quot;}">
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						<div class="elementor-element elementor-element-c6154dc elementor-widget elementor-widget-heading" data-id="c6154dc" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">RESULTADOS</h2>				</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-90aed2e" data-id="90aed2e" data-element_type="column">
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				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">SUPERFÍCIE LATERAL</h2>				</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-cb0add2 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="cb0add2" data-element_type="section">
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			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-e1e9f50 elementor-widget elementor-widget-image" data-id="e1e9f50" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="944" height="506" src="https://nanovea.com/wp-content/uploads/2022/04/Fractography-Profilometer-Analysis.jpg" class="attachment-large size-large wp-image-18492" alt="" />															</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-31333af" data-id="31333af" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-42ad972 elementor-widget elementor-widget-heading" data-id="42ad972" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Direção da textura da superfície 3D</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-3cd8889 elementor-widget elementor-widget-image" data-id="3cd8889" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="430" height="211" src="https://nanovea.com/wp-content/uploads/2022/04/Fracture-3D-Surface-Direction-Mapping.jpg" class="attachment-large size-large wp-image-18494" alt="" />															</div>
				</div>
				<div class="elementor-element elementor-element-5a5cbe4 elementor-widget elementor-widget-text-editor" data-id="5a5cbe4" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<table style="width: 100.868%;"><tbody><tr><td style="width: 65.1042%;">Isotropia</td><td style="width: 121.875%;"><span class="fontstyle0">15.55</span>%</td></tr><tr><td style="width: 65.1042%;">Primeira Direção</td><td style="width: 121.875%;"><span class="fontstyle0">0.1617</span>º</td></tr><tr><td style="width: 65.1042%;">Segunda Direção</td><td style="width: 121.875%;"><span class="fontstyle0">110.5</span>º</td></tr><tr><td style="width: 65.1042%;">Terceira direção</td><td style="width: 121.875%;"><span class="fontstyle0">171.5</span>º</td></tr></tbody></table>								</div>
				</div>
					</div>
		</div>
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		</section>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-23d7308 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="23d7308" data-element_type="section">
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															<img loading="lazy" decoding="async" width="850" height="272" src="https://nanovea.com/wp-content/uploads/2022/04/Metal-Fracture-Measurement.jpg" class="attachment-large size-large wp-image-18499" alt="" />															</div>
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				<div class="elementor-widget-container">
									<p><span class="fontstyle0">Área de superfície, volume, rugosidade e muitos outros podem ser calculados automaticamente a partir desta extração.</span> </p>								</div>
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					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-356dcd0" data-id="356dcd0" data-element_type="column">
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				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Extração de perfil 2D</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-5cc99d7 elementor-widget elementor-widget-image" data-id="5cc99d7" data-element_type="widget" data-widget_type="image.default">
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															<img loading="lazy" decoding="async" width="455" height="196" src="https://nanovea.com/wp-content/uploads/2022/04/Fracture-Profilometry-measurement.jpg" class="attachment-large size-large wp-image-18495" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSÃO</h2>				</div>
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				<div class="elementor-element elementor-element-18f7f2e elementor-widget elementor-widget-text-editor" data-id="18f7f2e" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<p>Nesta aplicação, mostramos como o NANOVEA ST400 3D Non-Contact Profilometer pode caracterizar com precisão a topografia completa (nano, micro e macro características) de uma superfície fraturada. Da área 3D, a superfície pode ser claramente identificada e sub-áreas ou perfis/seções transversais podem ser rapidamente extraídas e analisadas com uma lista interminável de cálculos de superfície. As características da superfície sub nanométrica podem ser analisadas com um módulo AFM integrado.</p><p>Além disso, a NANOVEA incluiu uma versão portátil em sua linha de Perfisômetros, especialmente crítica para estudos de campo onde uma superfície de fratura é imóvel. Com esta ampla lista de capacidades de medição de superfície, a análise da superfície de fratura nunca foi tão fácil e mais conveniente com um único instrumento.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Tem um aplicativo semelhante?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/pt/fractografia-analise-utilizacao-3d-profilometria/">Fractography Analysis Using 3D Profilometry</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Desgaste e Atrito de Correia Polimérica usando um Tribômetro</title>
		<link>https://nanovea.com/pt/tribometro-polimerico-de-cinta-e-friccao-utilizador/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=polymer-belt-wear-and-friction-using-tribometer</link>
					<comments>https://nanovea.com/pt/tribometro-polimerico-de-cinta-e-friccao-utilizador/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Qui, 06 de janeiro de 2022 21:24:20 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Linear Tribology]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<category><![CDATA[Tribology Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=16977</guid>

					<description><![CDATA[<p>POLYMER BELTS WEAR AND FRICTION USING a TRIBOMETER Prepared by DUANJIE LI, PhD INTRODUCTION Belt drive transmits power and tracks relative movement between two or more rotating shafts. As a simple and inexpensive solution with minimal maintenance, belt drives are widely used in a variety of applications, such as bucksaws, sawmills, threshers, silo blowers and [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/tribometro-polimerico-de-cinta-e-friccao-utilizador/">Polymer Belt Wear and Friction using a Tribometer</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="16977" class="elementor elementor-16977" data-elementor-post-type="post">
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					<h2 class="elementor-heading-title elementor-size-default">CELULOS DE POLÍMERO</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">GUERRA E FRICAÇÃO UTILIZANDO um TRIBOMETRO</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="217" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Wear-Testing.jpg" class="attachment-medium_large size-medium_large wp-image-16979" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparado por</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">DUANJIE LI, PhD</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUÇÃO</h2>				</div>
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									<p>O acionamento por correia transmite potência e rastreia o movimento relativo entre dois ou mais eixos rotativos. Como uma solução simples e barata com manutenção mínima, os acionamentos por correia são amplamente utilizados em uma variedade de aplicações, tais como serras, serrarias, debulhadoras, sopradores de silo e transportadores. Os acionamentos por correia podem proteger as máquinas de sobrecarga, bem como de vibrações úmidas e isoladas.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTÂNCIA DA AVALIAÇÃO DO DESGASTE
PARA ACIONAMENTO POR CORREIA</h2>				</div>
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									<p>A fricção e o desgaste são inevitáveis para as correias em uma máquina acionada por correia. O atrito suficiente garante uma transmissão de potência eficaz sem escorregar, mas o atrito excessivo pode desgastar rapidamente a correia. Diferentes tipos de desgaste, como fadiga, abrasão e atrito, ocorrem durante a operação de acionamento da correia. A fim de prolongar a vida útil da correia e reduzir o custo e o tempo de reparo e substituição da correia, é desejável uma avaliação confiável do desempenho de desgaste das correias para melhorar a vida útil da correia, a eficiência da produção e o desempenho da aplicação. A medição precisa do coeficiente de atrito e da taxa de desgaste da correia facilita a P&amp;D e o controle de qualidade da produção da correia.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-bbe0c25 elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="bbe0c25" data-element_type="section">
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																<a href="https://nanovea.com/instruments/t2000/">
							<img loading="lazy" decoding="async" width="768" height="711" src="https://nanovea.com/wp-content/uploads/2020/12/T2000-Superior-Tribometer.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-9913" alt="Tribômetro Pneumático de Alta Carga" />								</a>
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									<p style="text-align: left;">OBJETIVO DA MEDIÇÃO</p>								</div>
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									<p style="text-align: left;"><span class="fontstyle0">Neste estudo, simulamos e comparamos os comportamentos de desgaste das correias com diferentes texturas de superfície para mostrar a capacidade do </span><span class="fontstyle2">NANOVEA </span><span class="fontstyle0">T2000 Tribômetro na simulação do processo de desgaste da esteira de forma controlada e monitorada.</span></p>								</div>
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									<p style="text-align: left;">NANOVEA</p>								</div>
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									<p style="text-align: left;">T2000</p>								</div>
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									<span class="elementor-button-text">SAIBA MAIS</span>
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					<h2 class="elementor-heading-title elementor-size-default">PROCEDIMENTOS DE TESTE</h2>				</div>
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									<p><span class="fontstyle0">O coeficiente de atrito, COF, e a resistência ao desgaste de duas correias com rugosidade e textura de superfície diferentes foram avaliados pelo </span><span class="fontstyle2">NANOVEA </span><span class="fontstyle0">Carga elevada <a href="https://nanovea.com/tribometers/">Tribômetro </a>usando Módulo de Desgaste Alternativo Linear. Uma esfera de aço 440 (10 mm de diâmetro) foi utilizada como contra-material. A rugosidade da superfície e o rastro de desgaste foram examinados usando um <a href="https://nanovea.com/profilometers/">Perfilômetro 3D sem contato</a>. A taxa de desgaste, </span><span class="fontstyle2">K</span><span class="fontstyle0">foi avaliada usando a fórmula </span><span class="fontstyle2">K=Vl(Fxs)</span><span class="fontstyle0">onde </span><span class="fontstyle2">V </span><span class="fontstyle0">é o volume gasto, </span><span class="fontstyle2">F </span><span class="fontstyle0">é a carga normal e </span><span class="fontstyle2">s </span><span class="fontstyle0">é a distância de deslizamento.</span></p><p> </p><p><span class="fontstyle0">Por favor, note que uma contraparte de esfera lisa de aço 440 foi usada como exemplo neste estudo, qualquer material sólido com diferentes formas e acabamento superficial pode ser aplicado usando dispositivos personalizados para simular a situação real de aplicação.</span></p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-73014f5 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="73014f5" data-element_type="section">
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															<img loading="lazy" decoding="async" width="759" height="428" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Wear-and-Friction.jpg" class="attachment-large size-large wp-image-16988" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="758" height="514" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Tribometer.jpg" class="attachment-large size-large wp-image-16987" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">RESULTADOS &amp; DISCUSSÃO</h2>				</div>
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									<p><span class="fontstyle0">A esteira texturizada e a esteira lisa têm uma rugosidade de superfície Ra de 33,5 e 8,7 um, respectivamente, de acordo com os perfis de superfície analisados tomados com um </span><span class="fontstyle2">NANOVEA </span><span class="fontstyle0">Perfilador ótico 3D sem contato. O COF e a taxa de desgaste das duas correias testadas foram medidos em 10 N e 100 N, respectivamente, para comparar o comportamento de desgaste das correias com cargas diferentes.</span></p>								</div>
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									<p><span class="fontstyle0">FIGURA 1 </span><span class="fontstyle2">mostra a evolução do COF das correias durante os testes de desgaste. As correias com texturas diferentes exibem comportamentos de desgaste substancialmente diferentes. É interessante que após o período de rodagem durante o qual o COF aumenta progressivamente, a Correia Texturizada atinge um COF mais baixo de ~0,5 em ambos os testes realizados usando cargas de 10 N e 100 N. Em comparação, a Correia Lisa testada sob a carga de 10 N exibe um COF significativamente mais alto de ~ 1,4 quando o COF fica estável e se mantém acima deste valor durante o resto do teste. A Smooth Belt testada sob a carga de 100 N rapidamente foi desgastada pela esfera de aço 440 e formou uma grande pista de desgaste. O teste foi, portanto, interrompido a 220 rotações.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="571" height="472" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-COF.jpg" class="attachment-large size-large wp-image-16980" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 1:</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Evolução do COF das correias com diferentes cargas.
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									<p>FIGURA 2 compara as imagens das pistas de desgaste 3D após os testes a 100 N. O NANOVEA 3D sem contato oferece uma ferramenta para analisar a morfologia detalhada das pistas de desgaste, fornecendo mais informações sobre a compreensão fundamental do mecanismo de desgaste.</p>								</div>
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															<img loading="lazy" decoding="async" width="602" height="150" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Coefficient-of-Friction.jpg" class="attachment-large size-large wp-image-16991" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">TABELA 1:</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Resultado da análise da pista de desgaste.
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															<img loading="lazy" decoding="async" width="586" height="411" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Profilometer-scan.jpg" class="attachment-large size-large wp-image-16983" alt="" />															</div>
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									<p style="text-align: center;"><span style="color: #1b96cf;">FIGURA 2:</span><span style="color: #1b96cf;"><span style="color: #000000;">  <span class="fontstyle0">Vista 3D das duas correias<br />após os testes a 100 N.</span></span></span></p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-9a96d54 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="9a96d54" data-element_type="section">
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									<p class="MsoNormal">O perfil da pista de desgaste 3D permite a determinação direta e precisa do volume da pista de desgaste calculado pelo software de análise avançada, como mostrado na TABELA 1. Em um teste de desgaste para 220 rotações, a Smooth Belt tem uma pista de desgaste muito maior e mais profunda com um volume de 75,7 mm3, em comparação com um volume de desgaste de 14,0 mm3 para a Textured Belt após um teste de desgaste de 600 rotações. O atrito significativamente maior da esteira lisa contra a esfera de aço leva a uma taxa de desgaste 15 vezes maior em comparação com a esteira texturizada.</p><p class="MsoNormal"> </p><p class="MsoNormal">Uma diferença tão drástica de COF entre a esteira texturizada e a esteira lisa está possivelmente relacionada ao tamanho da área de contato entre a esteira e a esfera de aço, o que também leva a seu desempenho de desgaste diferente. A FIGURA 3 mostra as faixas de desgaste das duas correias sob o microscópio ótico. O exame das faixas de desgaste está de acordo com a observação sobre a evolução do COF: A Correia Texturizada, que mantém um COF baixo de ~0,5, não apresenta sinais de desgaste após o teste de desgaste sob uma carga de 10 N. A Correia Lisa mostra uma pequena faixa de desgaste a 10 N. Os testes de desgaste realizados a 100 N criam faixas de desgaste substancialmente maiores tanto na Correia Texturizada quanto na Correia Lisa, e a taxa de desgaste será calculada usando perfis 3D, como será discutido no parágrafo seguinte.</p>								</div>
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															<img loading="lazy" decoding="async" width="490" height="470" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Wear-Test.jpg" class="attachment-large size-large wp-image-16989" alt="" />															</div>
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									<p style="text-align: center;"><span style="color: #1b96cf;">FIGURA 3:</span><span style="color: #1b96cf;"><span style="color: #000000;">  <span class="fontstyle0">Desgaste de trilhos sob microscópio ótico.</span> <br /></span></span></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSÃO</h2>				</div>
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									<p>Neste estudo, mostramos a capacidade do Tribômetro NANOVEA T2000 em avaliar o coeficiente de atrito e a taxa de desgaste das correias de uma maneira bem controlada e quantitativa. A textura da superfície desempenha um papel crítico na resistência ao atrito e ao desgaste das correias durante seu desempenho de serviço. A correia texturizada apresenta um coeficiente de atrito estável de ~0,5 e possui uma longa vida útil, o que resulta em tempo e custo reduzidos no reparo ou substituição de ferramentas. Em comparação, o atrito excessivo da esteira lisa contra a esfera de aço rapidamente usa a esteira. Além disso, a carga sobre a correia é um fator vital de sua vida útil. A sobrecarga cria um atrito muito alto, levando a um desgaste acelerado da correia.</p>
<p>O Tribômetro NANOVEA T2000 oferece testes de desgaste e atrito precisos e repetíveis usando os modos rotativo e linear compatíveis com ISO e ASTM, com módulos opcionais de desgaste em alta temperatura, lubrificação e tribocorrosão disponíveis em um sistema pré-integrado.&nbsp;<span style="font-size: 16.8px;">NANOVEA's&nbsp;</span>A gama inigualável é uma solução ideal para determinar a gama completa de propriedades tribológicas de revestimentos, filmes e substratos finos ou grossos, macios ou duros.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Tem um aplicativo semelhante?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/pt/tribometro-polimerico-de-cinta-e-friccao-utilizador/">Polymer Belt Wear and Friction using a Tribometer</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Microestrutura fóssil usando a Perfilometria 3D</title>
		<link>https://nanovea.com/pt/fossil-microstrutura-usando-3d-profilometria/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=fossil-microstructure-using-3d-profilometry</link>
					<comments>https://nanovea.com/pt/fossil-microstrutura-usando-3d-profilometria/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Ter, 28 de dezembro de 2021 20:03:37 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=16911</guid>

					<description><![CDATA[<p>FOSSIL MICROSTRUCTURE USING 3D PROFILOMETRY Prepared by DUANJIE LI, PhD INTRODUCTION Fossils are the preserved remains of traces of plants, animals and other organisms buried in sediment under ancient seas, lakes and rivers. The soft body tissue usually decays after death, but the hard shells, bones and teeth fossilize. Microstructure surface features are often preserved [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/fossil-microstrutura-usando-3d-profilometria/">Fossil Microstructure Using 3D Profilometry</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="16911" class="elementor elementor-16911" data-elementor-post-type="post">
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					<h2 class="elementor-heading-title elementor-size-default">MICROESTRUTURA FÓSSIL</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">USANDO A PROFILOMETRIA 3D</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="217" src="https://nanovea.com/wp-content/uploads/2021/12/Fossils-Portable-Profilometer.jpg" class="attachment-medium_large size-medium_large wp-image-16924" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparado por</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">DUANJIE LI, PhD</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUÇÃO</h2>				</div>
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									<p>Os fósseis são os restos preservados de vestígios de plantas, animais e outros organismos enterrados em sedimentos sob antigos mares, lagos e rios. O tecido mole do corpo geralmente se decompõe após a morte, mas as conchas duras, os ossos e os dentes se fossilizam. As características da superfície da microestrutura são frequentemente preservadas quando ocorre a substituição mineral das conchas e ossos originais, o que proporciona uma visão da evolução do tempo e do mecanismo de formação dos fósseis.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTÂNCIA DE UM PROFILÔMETRO 3D SEM CONTATO PARA O EXAME FÓSSIL</h2>				</div>
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									<p>Perfis 3D do fóssil nos permitem observar as características detalhadas da superfície da amostra fóssil de um ângulo mais próximo. A alta resolução e precisão do perfilômetro NANOVEA podem não ser discerníveis a olho nu. O software de análise do perfilômetro oferece uma ampla gama de estudos aplicáveis a essas superfícies únicas. Ao contrário de outras técnicas, como sondas de toque, o NANOVEA <a href="https://nanovea.com/profilometers/">Perfilômetro 3D sem contato</a> mede as características da superfície sem tocar na amostra. Isto permite a preservação das verdadeiras características da superfície de certas amostras fósseis delicadas. Além disso, o perfilômetro portátil modelo Jr25 permite a medição 3D em sítios fósseis, o que facilita substancialmente a análise e proteção de fósseis após a escavação.</p>								</div>
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									<p style="text-align: left;">OBJETIVO DA MEDIÇÃO</p>								</div>
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									<p style="text-align: left;"><span style="font-size: 16.8px;">Neste estudo, o Profilômetro NANOVEA Jr25 é usado para medir a superfície de duas amostras representativas de fósseis. Toda a superfície de cada fóssil foi escaneada e analisada a fim de caracterizar suas características de superfície que incluem rugosidade, contorno e direção da textura.</span></p>								</div>
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									<p style="text-align: left;">NANOVEA</p>								</div>
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									<p style="text-align: left;">Jr25</p>								</div>
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									<span class="elementor-button-text">SAIBA MAIS</span>
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																<a href="https://nanovea.com/instruments/jr25/">
							<img loading="lazy" decoding="async" width="664" height="733" src="https://nanovea.com/wp-content/uploads/2021/08/NANOVEA-Jr25-Portable-Profilometer.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-12966" alt="" />								</a>
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					<h2 class="elementor-heading-title elementor-size-default">BRACHIOPOD FÓSSIL</h2>				</div>
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									<p>A primeira amostra fóssil apresentada neste relatório é um fóssil Brachiopod, que veio de um animal marinho que possui "válvulas" (conchas) duras em suas superfícies superior e inferior. Eles apareceram pela primeira vez no período Cambriano, que é mais de 550 milhões de anos atrás.</p><p><span style="font-size: 16.8px;">A Vista 3D da varredura é mostrada em FIGURA 1 e a Vista Falsa Cor é mostrada em FIGURA 2. </span></p>								</div>
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															<img loading="lazy" decoding="async" width="535" height="501" src="https://nanovea.com/wp-content/uploads/2021/12/Shell-Fossil-Analysis.jpg" class="attachment-large size-large wp-image-16919" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="717" height="521" src="https://nanovea.com/wp-content/uploads/2021/12/Brachiopod-Fossil-Scan-Profilometer.jpg" class="attachment-large size-large wp-image-16939" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 1: </span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0">Vista 3D da amostra fóssil do Brachiopod.</span><br /></span></span></p>								</div>
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															<img loading="lazy" decoding="async" width="501" height="418" src="https://nanovea.com/wp-content/uploads/2021/12/Brachiopod-Fossil-Study.jpg" class="attachment-large size-large wp-image-16925" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 2: </span><span class="fontstyle0"><span style="color: #000000;">Falsa visão colorida da amostra de fóssil Brachiopod.</span></span></p>								</div>
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									<p><span style="font-size: 16.8px;">A forma geral foi então removida da superfície a fim de investigar a morfologia local da superfície e o contorno do fóssil Brachiopod, conforme mostrado na FIGURA 3. Uma peculiar textura de ranhura divergente pode agora ser observada na amostra do fóssil Brachiopod.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="773" height="318" src="https://nanovea.com/wp-content/uploads/2021/12/Shell-Fossil-Profilometry.jpg" class="attachment-large size-large wp-image-16920" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 3:</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Vista falsa de cores e linhas de contorno após a remoção do formulário.</span><br /></span></span></p>								</div>
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									<p><span style="font-size: 16.8px;">Um perfil de linha é extraído da área texturizada para mostrar uma visão transversal da superfície fóssil na FIGURA 4. O estudo Step Height mede as dimensões precisas das características da superfície. As ranhuras possuem uma largura média de ~0,38 mm e profundidade de ~0,25 mm.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="1024" height="243" src="https://nanovea.com/wp-content/uploads/2021/12/Shell-Fossil-Study.jpg" class="attachment-large size-large wp-image-16921" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="161" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Fossil-Study-Profilometer.jpg" class="attachment-large size-large wp-image-16938" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 4:</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Estudo do perfil da linha e da altura do degrau da superfície texturizada.</span><br /></span></span></p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-1979bac elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="1979bac" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">FÓSSIL DE TRONCO DE CRINOIDES</h2>				</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-f6f1994 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="f6f1994" data-element_type="section">
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									<p><span style="font-size: 16.8px;">A segunda amostra fóssil é um fóssil Crinoide stem. Os Crinoides apareceram pela primeira vez nos mares do Período Médio Cambriano, cerca de 300 milhões de anos antes dos dinossauros. </span></p><p><span style="font-size: 16.8px;"> </span></p><p><span style="font-size: 16.8px;">A vista 3D da varredura é mostrada no FIGURA 5 e a Vista Falsa Colorida é mostrada no FIGURA 6. </span></p>								</div>
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															<img loading="lazy" decoding="async" width="392" height="534" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Fossil-Analysis.jpg" class="attachment-large size-large wp-image-16926" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="661" height="508" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Stem-Fossil-Study.jpg" class="attachment-large size-large wp-image-16917" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 5: </span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0">Vista 3D da amostra do fóssil Crinoide.</span><br /></span></span></p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-ff3fa93 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="ff3fa93" data-element_type="section">
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									<p><span style="font-size: 16.8px;">A textura superficial da isotropia e a rugosidade do fóssil Crinoide-tronco são analisadas na FIGURA 7. </span></p><p><span style="font-size: 16.8px;"> </span><span style="color: var( --e-global-color-text );">Este fóssil tem uma direção de textura preferencial no ângulo próximo a 90°, levando a uma isotropia de textura de 69%.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="497" height="368" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Fossil-Profilometry.jpg" class="attachment-large size-large wp-image-16914" alt="" />															</div>
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									<p style="text-align: center;"><span style="color: #1b96cf;">FIGURA 6:</span><span style="color: #1b96cf;"><span style="color: #000000;"> Vista Falsa de Cor do </span></span><span style="color: #000000;">Haste de crinoides </span><span style="color: #000000;">amostra.</span></p><p style="text-align: center;"><span style="color: #1b96cf;"><span style="color: #000000;"> </span></span></p>								</div>
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															<img loading="lazy" decoding="async" width="506" height="248" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Fossil-Measurement.jpg" class="attachment-large size-large wp-image-16913" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="444" height="202" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Fossil-Isotropy-and-Roughness.jpg" class="attachment-large size-large wp-image-16912" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="234" src="https://nanovea.com/wp-content/uploads/2021/12/Fossil-Profilometry-Parameters.jpg" class="attachment-large size-large wp-image-16918" alt="" />															</div>
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									<p style="text-align: center;"><span style="color: #1b96cf;">FIGURA 7:</span><span style="color: #1b96cf;"><span style="color: #000000;"> </span></span><span style="color: #000000;">Textura da superfície isotropia e rugosidade do fóssil Crinoide-tronco.</span></p>								</div>
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									<p><span style="font-size: 16.8px;">O perfil 2D ao longo da direção axial do fóssil Crinoide stem é mostrado na FIGURA 8. </span></p><p><span style="color: var( --e-global-color-text );">O tamanho dos picos da textura da superfície é bastante uniforme.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="1024" height="211" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Stem-Fossil-Profile-Analysis.jpg" class="attachment-large size-large wp-image-16916" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="145" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Stem-Fossil-2D-Profile-Analysis.jpg" class="attachment-large size-large wp-image-16915" alt="" />															</div>
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									<p style="text-align: center;"><span style="color: #1b96cf;">FIGURA 8:</span><span style="color: #000000;"> Análise do perfil 2D do fóssil Crinoid stem.</span></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSÃO</h2>				</div>
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									<p><span style="font-size: 16.8px;">Nesta aplicação, estudamos de forma abrangente as características de superfície 3D de um fóssil de Brachiopod e haste Crinoide utilizando o NANOVEA Jr25 Portable Non-Contact Profilometer. Mostramos que o instrumento pode caracterizar com precisão a morfologia 3D das amostras fósseis. As interessantes características de superfície e textura das amostras são então analisadas mais detalhadamente. A amostra Brachiopod possui uma textura de ranhura divergente, enquanto que o fóssil Crinoid mostra uma isotropia de textura preferencial. As varreduras detalhadas e precisas da superfície 3D provam ser ferramentas ideais para paleontólogos e geólogos estudarem a evolução de vidas e a formação de fósseis.</span></p><p><span style="color: var( --e-global-color-text ); background-color: rgba(255, 255, 255, 0);">Os dados mostrados aqui representam apenas uma parte dos cálculos disponíveis no software de análise. Os Profilômetros NANOVEA medem praticamente qualquer superfície em campos como Semicondutor, Microeletrônica, Solar, Fibra Óptica, Automotivo, Aeroespacial, Metalurgia, Usinagem, Revestimentos, Farmacêutico, Biomédico, Ambiental e muitos outros.</span></p>								</div>
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				</div><p>The post <a href="https://nanovea.com/pt/fossil-microstrutura-usando-3d-profilometria/">Fossil Microstructure Using 3D Profilometry</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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