An in situ mechanism for self-replenishing powder transfer films: Experiments and modeling

Pellets were formed by compacting MoS2 powder. A series of tests were conducted on a tribometer that consisted of simultaneous pellet-on disk and pad-on disk sliding contacts. The purpose of the tests was to intentionally transfer MoS2 third-body particles to a disk where its lubrication characteristics could be studied. This work also showed that the MoS2 pellet actually acted as a self-repairing, self-replenishing, oil-free lubrication...