Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5352376 | Applied Surface Science | 2013 | 4 Pages |
Abstract
This paper reports the influence of the adhesion interlayer between stainless steel and diamond-like carbon (DLC) films in two different contact conditions: in dry air and deionized water. The water was the liquid used to understand the mechanism and chemical reactions of the tribolayer formation under boundary lubrication. The effect of silicon and carbonitride adhesion interlayer was investigated on uncoated and coated DLC films. The results show that DLC/DLC pairs using carbonitride in air (30% RH) showed 60% less friction coefficient and wear less than three orders of magnitude than DLC/DLC pairs using silicon as interlayer. In deionized water, DLC/DLC pairs using carbonitride as interlayer showed 31% less friction coefficient when compared to DLC/DLC pairs with silicon. Raman related the chemical and structural changes in the DLC films during sliding in air and in the presence of water. Scratch tests showed a critical load of 14Â N and 33Â N in DLC films with silicon and carbonitride, respectively.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
R.P.C. Costa, D.A. Lima-Oliveira, F.R. Marciano, A.O. Lobo, E.J. Corat, V.J. Trava-Airoldi,