Tribological properties of nanocrystalline diamond films with different nanoscale morphology and bonding characteristics

Contributors:   A.L. Winfrey, S.E. Reising, L.S. Bilbro, Robert J. Nemanich, R.R. Chromik, and K.J. Wahl

ABSTRACT

The morphology and bonding characteristics of nanocrystalline diamond films prepared with different Ar:H ratios have been studied and are correlated to tribological performance. A coating made with high Ar:H ratio displayed low friction of 0.05 and very minimal wear, while the low Ar:H film showed high friction (> 0.2), rapid wear, and complete failure after 50 cycles. As both films had the same rms roughness, their different tribology appears to stem from a change in morphology.

Publisher: Proceedings of the World Tribology Congress III,   Published: 2005-09 ||   Read more...