Effects of nanocrystalline silver incorporation on sliding tribological properties of Ag-containing diamond-like carbon films in multi-ion beam assisted deposition (Conference Paper)

摘要

Ag-DLC different films with six Ag contents on AISI 440 steel substrate were deposited with a multi-ion beam assisted deposition, and attempt to correlate the incorporation of silver with the sliding tribological behavior was performed. Results show that: (i) increasing Ag content leading to an upward tendency of Ag of nanocrystallite size; (ii) superior tribological behaviors for the films with Ag content ranging between 4.3 and 10.6 at%; and (iii) the best tribological behaviors for the film of 8.3 at% Ag and 12.9 grain size. It also confirms that the evolution of the tribological properties is closely related to the level of the interaction of incorporated silver in forming sp ~3 hybridization in the DLC films. These phenomena imply that the energetic particles may induce a balance between the recombination of particles and the change of internal stress in the DLC films.