Influence of surface topography on frictional properties of Cu surfaces under different lubrication conditions: Comparison of dry, base oil, and ZnS nanowire-based lubrication system

This work deals with the frictional properties of ductile Cu surfaces of varying morphologies under three different lubrication conditions including dry, base oil only, and nanowire+base oil. It was found that the frictional properties of base oil and nanowire-based lubrication system strongly depended on the surface topography while the friction for the dry surfaces was independent of the surface topography.