Wear of metal-containing diamond-like carbon coatings

✍ Scribed by Stephen J. Harris; Anita M. Weiner

• Publisher: Springer US
• Year: 1996
• Tongue: English
• Weight: 344 KB
• Volume: 2
• Category: Article
• ISSN: 1023-8883
• DOI: 10.1007/bf00156909

✦ Synopsis

Four commercial metal-containing DLC coatings were tested with a ball-on-disk tribometer to examine their modes of wear. Although all were sputter-deposited, the coatings differed in their compositions, thicknesses, and surface finish. The tests showed certain common wear modes. In each case the films wore away at constant rates until they were worn through. In this sense, interface adhesion was not an important issue. Since the nominal contact areas increased significantly during the course of the test, while the wear rates were constant, the wear rate was not controlled by the nominal average contact stress. Our data are consistent with the model of Greenwood and Williamson.