Scratch adhesion tester
The scratch tester is used for testing the adhesion of thin film coating. The adhesion testing is carried out using a steadily increasing load on a Rockwell diamond sliding across a coated test piece or component. The critical load at which the coating fails is measured using a load cell, acoustic emission and finally confirmed optically.
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Rockwell adhesion tester
Another method of adhesion testing, developed by the Union of German Engineers, (Verein Deutscher
Ingenieure, VDI) and also referred to as the Daimler-Benz test uses a standard Rockwell hardness tester fitted with a Rockwell “C”-type diamond cone indenter with an applied load of 150kg. The adhesion is assessed by observation of the Rockwell “C” indent after the adhesion test.
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Coating thickness tester (Calo® tester or ball crater thickness tester)
The coating thickness tester referred to as a Calo tester or ball crater thickness tester depending on the testing equipment supplier provides a quick, easy and inexpensive method of measuring coating thickness.
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Pin on disc wear and friction tester
The pin on disc tester using a fixed ball counterpart sliding against coated test piece to measure the tribological properties, friction and sliding wear, of the coating.
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