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AR Blog Archives
Coating Failure Analysis Using Micro Scratch Testing
We must simulate the process of scratch testing in a controlled and monitored manner to observe coating failure analysis. In this application, the Nanovea Mechanical Tester, in its micro scratch mode, is used to measure the load required to cause the coating failure to three separately processed DLC coatings. A 90° Cone, 20μm diamond tipped stylus is used at a progressive load ranging from 0.01 mN to 15 N to scratch the DLC coating. The point where the coating fails by cracking is taken as the point of failure.
