Departmental Papers (MEAM)
Document Type
Journal Article
Date of this Version
June 2008
Abstract
The impressively low friction and wear of diamond in humid environments is debated to originate from either the stability of the passivated diamond surface or sliding-induced graphitization/rehybridization of carbon. We find ultralow friction and wear for ultrananocrystalline diamond surfaces even in dry environments, and observe negligible rehybridization except for a modest, submonolayer amount under the most severe conditions (high load, low humidity). This supports the passivation hypothesis, and establishes a new regime of exceptionally low friction and wear for diamond.
COinS
Date Posted: 16 July 2008
This document has been peer reviewed.
Comments
Copyright American Physical Society. Reprinted from Physical Review Letters, Volume 100, Article 235502, June 2008.
Publisher URL: http://dx.doi.org/10.1103/PhysRevLett.100.235502