Tribological Properties of Crystalline Hardcoat on Aluminum

This study evaluates the abrasion, solid-particle erosion resistance and system wear characteristics of a crystalline ceramic coating (CIC) for aluminum. Specifically the ASTM G 174 loop abrasion resistance test, the ASTM G 133 reciprocating wear and the ASTM G 99 particle impingement tests were conducted on the crystalline hard coat, eight competitive coatings and reference materials. The study results indicated that CIC has significantly better abrasion and erosion resistance than conventional hardcoat. It also indicates that 52100 is not a suitable counterface for the reciprocating system wear.