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Scratch testing generally involves moving a diamond tip across the surface of a sample with an ever increasing or constant load. The test is commonly monitored with a video camera so that different modes of danage can be determined and correlated to the load applied. While typically used to measure scratch resistance, the test can also be used to compare the relative performance or effectiveness of coatings and surfaces.
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Featured Equipment
High flexibility in indentation and scratch testing is offered by Bruker's UMT-1 nano- and micro-mechanical test instrument platform.
The new NanoTest Vantage system from Micro Materials Ltd offers a range of mechanical tests on the nano-scale, allowing the researcher to build a complete picture of material performance. The nanotest Vantage can characterise you samples using numerous techniques including nanoindentation, nano-impact and fatigue, nano-scratch and wear and nano-fretting.
Other Equipment
CSM Scratch Testers are ideal instruments for characterizing the surface mechanical properties of thin films and coatings, e.g. adhesion, fracture and deformation.
Taber's Shear/Scratch Tester can be used to study resistance to scratching, gouging, shearing, marring, scraping and engraving on a range of rigid flat specimens. It may also be used to test the homogeneity of materials, the adhesive qualities of protective coatings and the impact of age on similar materials.
Multi-Finger Scratch/Mar Tester-Model 710 available from Taber Industries has been designed to evaluate the relative susceptibility or resistance of a material surface to physical damages, such as scratching, scraping, gouging, marring, engraving, etc.
The Agilent Nano Indenter G200 is the world’s most accurate, flexible, and user-friendly instrument for nanoscale mechanical testing. Electromagnetic actuation allows it to achieve unparalleled dynamic range in force and displacement. The G200 Nano Indenter enables users to measure Young’s modulus and hardness in compliance with ISO 14577.
The system is capable of storing up to 600 test results from a choice of 10 programmable test set-ups. For enhanced performance, the TA1 can be used with Lloyd Instruments NEXYGENPlus data analysis software. The software contains an extensive library of pre-programmed texture test set-ups based on international standards. Test information can easily be exported to Microsoft® products such as Word, Excel® and Outlook®.