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Category: Scratch Hardness

 

Scratch Testing on Multi-Layered Thin Film

Coatings used extensively throughout multiple industries to preserve the underlying layers, to create electronic devices, or to improve surface properties of materials. Due to their numerous uses coatings are extensively studied, but their mechanical properties can be difficult to understand. Failure of coatings can occur in the micro/nanometer range from surface-atmosphere interaction, cohesive failure, and poor substrate-interface adhesion. A consistent method to test for coating failures is scratch testing. By applying a progressively increasing load, cohesive (e.g. cracking) and adhesive (e.g. delamination) failures of coatings can be quantitatively compared.

Scratch Testing on Multi-Layered Thin Film

Grooved Stent Coating Failure Using Nano Scratch Testing

Drug–eluting stent is a novel approach in stent technology. It possesses a biodegradable and biocompatible polymer coating that releases medicine slowly and continuously at the local artery to inhibit intimal thickening and prevent the artery from being blocked again. One of the major concerns is the delamination of the polymer coating that carries the drug-eluting layer from the metal stent substrate. In order to improve the adhesion of this coating to the substrate, the stent is designed in different shapes. Specifically in this study, the polymer coating locates at the bottom of the groove on the mesh wire, which brings enormous challenge to the adhesion measurement. A reliable technique is in need to quantitatively measure the interfacial strength between the polymer coating and the metal substrate. The special shape and the small diameter of the stent mesh (comparable to a human hair) require ultrafine X-Y lateral accuracy to locate the test position and proper control and measurement of the load and depth during the test.

Grooved Stent Coating Failure Using Nano Scratch Testing

Scratch Hardness Measurement Using Mechanical Tester

In this study, the Nanovea Mechanical Tester, in Microindentation mode,  is used to measure the scratch hardness of different metals. We would like to showcase the capacity of Nanovea Mechanical Tester in performing scratch hardness measurement with high precision and reproducibility.

Scratch Hardness Measurement Using Mechanical Tester

Altmann S.A. Importação e Comércio

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Unitron Instrumentation Tech Pvt. Ltd

INDIA

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Bangalore – 560027 India
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Nanovea SRL

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Rivalta di Torino
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MICRO-NANO Technology Co. Ltd

CHINA | TAIWAN | HONG KONG

• BEIJING
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Chaoyang District
Beijing China/100022
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Tribotron AG

SWITZERLAND | AUSTRIA

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CH-9014 St.Gallen
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Mi-Net Technology Ltd. UNITED KINGDOM | IRELAND 30 Summerleaze Road Maidenhead Berks SL6 8EN United Kingdom +44(0) 1628 783576

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160-0023

株式会社日本サーマル・コンサルティング

東京都新宿区西新宿1-5-11新宿三葉ビル5F

 

+81(0) 3 5339-1470

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Мелитэк | Melytec LLC

RUSSIA | BELARUS

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Moscow, 117342, Russia
+7 (495) 781-07-85

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Nanovea Inc

HEADQUARTERS

6 Morgan Ste 156
Irvine, CA 92618
Phone: (949) 461-9292

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Please fill out our form and we will reach out to you as soon as possible!

Nanovea de México

LATIN AMERICA

1952 Hidalgo
Colonia Ladron de Guevara
Guadalajara, Jalisco
Mexico 44600
Phone: +52 1 33 10 31 52 27

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Nanovea SRL

EUROPEAN OFFICE

Via Balegno 1
Rivalta di Torino
10040 TO (IT)
Phone: +39 011 3052 794

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