Micro Scratch Tester: MST³

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“ Viscoelastic materials characterization with pre-scan and multi-post-scan The displacement sensor (Dz) monitors the surface profile of the sample before, during, and after a scratch. It is therefore possible to evaluate the penetration depth of the indenter during and after the scratch. Multi-post-scan with time allows you to measure the viscoelastic recovery of polymers with time. Measurements even on curved and uneven surfaces Due to its unique force sensor control, the Micro Scratch system detects this deviation and the active force feedback corrects this deviation. The Micro Scratch system is capable of reliable measurements on uneven and curved surfaces. Numerous scratch testing capabilities with multiple testing modes Progressive, constant, or incremental loading Single pass or multiple passes (multi-pass) for multi-wear testing Quick and easy changes of the indenter tips on the indenter holder Different kinds of indenter tips available: spherical tips, Berkovich, Vickers, Knoop, Knife, and more High-quality optical imaging with “Follow Focus” Our integrated microscope consists of a turret with high-quality objectives and a USB video camera. A “Follow Focus” function allows automatic focus to the right position with the Z-table for multiple scratches. Typical applications Automobile bumper paint adhesion Automotive varnish clear coats Physical characterization of coated surfaces Hard coatings (PVD, CVD coatings): Thickness range from 1 micron to 20 microns Thermal/plasma spray coatings ”