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AR VISIT NANOVEA AT TMS 2014 NEXT MONTH!
San Diego | TMS (Feb 16 – 20 ) Visit Nanovea Booth. To be held at the San Diego Convention Center in San Diego, CA. Learn more
Initial Plastic Deformation To Wear Analysis
The wear process of a metal sample (Cu 110) and a polymer sample (teflon) is simulated in controlled and monitored manner using the Nanovea Mechanical Tester. In this study, we would like to showcase that the controlling and measuring the load and depth is ideal for wear analysis.
The Critical Effect Of Initial Plastic Deformation To Wear Analysis
Extreme Low Speed Friction Evaluation On Rubber
The coefficient of friction, COF, of rubber against different materials is measured in a controlled and monitored manner using the Nanovea Tribometer. In this study, we would like to showcase the capacity of the Tribometer for measuring the coefficient of friction of different materials at extreme low speeds.
Rubber Friction Evaluation At Extreme Low Speeds Using Tribometer
Surface Finish Measurement of Processed Leather
In this application, the Nanovea ST400 Profilometer is used to measure and compare the surface finish of 2 different but closely processed leather samples. Several surface parameters will be automatically calculated from the surface profile. Here we will focus on surface roughness, dimple depth, dimple pitch and dimple diameter for comparative evaluation.
Processed Leather Surface Finish Using 3D Profilometry
Here are examples of materials we tested this month:
Mechanical:
• Nanoindentation of nickel coatings
• Nanoindentation compression of adhesive
• Nanoscratch of ceramic coatings
• Microindentation of seawater aged rubber
• Microscratch of anodized coatings
3D Non-Contact Profilometry:
• Leather roughness measurement
• Form consistency of stamped metal
• Topography consistency of woven fabric
• Texture of molded plastic surfaces
• Depth of extrusion die pits
Tribology:
• Wear rate of Ti-MoS2 and WC coatings in dry, liquid and high temp conditions
In-Situ Wear Measurement At High Temperature Using Tribometer
Wear measurement of alumina silicate ceramic is simulated at high temperature in a controlled and monitored manner using the Nanovea Tribometer. In this study, we would like to showcase the capacity of the Tribometer for in-situ monitoring the evolution of the wear process of materials at elevated temperatures.
In-Situ Wear Measurement At High Temperature Using Tribometer
Transparent Film on Transparent Substrate Measurement
The Nanovea PS50 Profilometer is used for roughness measurement, step height thickness and optical thickness of a thin transparent film on a transparent glass substrate. Step height will be obtained by measuring an area of the film and an area where the substrate is exposed for relative height difference, while optical thickness will be measured by using the Profilometer capability of measuring through the transparent film and detecting a reflecting both from the top surface of the film and the substrate simultaneously.
Transparent Film on Transparent Substrate Measurement Using 3D Profilometry
Here are examples of materials we tested this month:
Mechanical:
• Nanoindentation mapping of micro parts
• Nanoindentation fracture of ceramic samples
• Nano Scratch of coated glass
• Nano Scratch failure of implant coatings
• Macroindentation of anodized coatings
• Micro Scratch of acrylic urethane coatings
• Macro Scratch of rock samples
3D Non-Contact Profilometry:
• Roughness of micro channels
• Roughness of curved plastics
• Texture of micro emboss
• Finish of powder coatings
• Coplanarity of micro features
• Dimensions of micro parts
Tribology:
• Linear Wear Testing of engine parts
• Rotative Wear Testing of ceramic samples
COLLABORATION TO IMPROVE TABER ABRASION TESTING
Traditionally, Taber abrasion testing is carried out to evaluate the wear resistance of Industrial Coatings according to ASTM D4060 Standard. However, as mentioned in the ASTM D4060 standard, “For some materials, abrasion tests utilizing the Taber Abraser may be subject to variation due to changes in the abrasive characteristics of the wheel during testing.” This may result in poor reproducibility of test results and create difficulty in comparing values reported from different laboratories. Moreover, in Taber abrasion test, abrasion resistance is calculated as loss in weight at a specified number of abrasion cycles. However, for example acrylic urethane floor paints have a recommended dry film thickness of 37.5-50 μm. The aggressive abrasion process by Taber Abraser can quickly wear through the acrylic urethane coating and create mass loss to the substrate, which leads to substantial errors in the calculation of the paint weight loss. The implant of abrasive particles in the paint during the abrasion test also contributes to the errors. Therefore, a well-controlled quantifiable and reliable measurement is crucial to ensure reproducible wear evaluation; such as a Tribometer.
Learn more in this months app note: Industrial Coating Scratch & Wear Evaluation
Powder Coating Finish Measurement Using 3D Profilometry
In this application, the Nanovea ST400 Profilometer is used to measure and compare the surface finish of four different Powder Coating samples. Several surface parameters will be automatically calculated from the coating profile. Here we will focus on Surface Roughness, Peak to Valley and Surface Area for comparative evaluation.
