Study on the deposition and tribological properties of diamond/DLC composite coating on WC-Co substrate Online publication date: Sat, 05-Jul-2014
by Bin Shen; Liang Wang; Sulin Chen; Fanghong Sun
International Journal of Abrasive Technology (IJAT), Vol. 6, No. 1, 2013
Abstract: Two types of diamond/DLC composite films, namely MCD/DLC and NCD/DLC, are fabricated on the WC-Co substrate by depositing a layer of DLC film on the surface of conventional MCD and NCD film. Characterisations on their surface morphology suggest that the diamond/DLC composite films exhibit a rather similar surface topography, but much lower surface roughness, comparing with the single-layered MCD or NCD film. The atomic-bonding state on their surface is largely determined by the top-layered DLC film, which is mainly composed of amorphous carbon phase. The results of friction tests indicate that the self-lubricating effect of top-layered DLC film significantly suppresses the initial friction peak and shortens the run-in period. With silicon nitride as the counterpart material, the average friction coefficients of MCD/DLC and NCD/DLC composite films during stable sliding period are respectively 0.07 and 0.10 in dry sliding, and 0.03 and 0.07 under water-lubricating condition.
Online publication date: Sat, 05-Jul-2014
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Abrasive Technology (IJAT):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email email@example.com