Coalesced transfer films of MoS2 were found

Heavy, coalesced transfer films of MoS2 were found after one kilocycle of sliding on the riders that slid on the films applied to the polished and sanded substrate surfaces. However, the transfer was not nearly as thick or continuous to riders that slid on films applied to the sandblasted substrate surface, probably because of the scouring action of the sharp metallic asperities on this surface. This thin transfer of MoS2 did not increase the friction coefficient; a slightly lower friction coefficient was obtained. With increasing sliding time, a feature common to all wear tracks and rider transfer films, was a distinct change in the appearance of the M0S2 film. Initially, the M0S2 on the wear track was a bright, metallic-colored, coalesced film. As sliding progressed, the M0S2 films on the wear tracks turned black and were no longer smooth and coalesced. The rate of this transformation seemed to be related to the roughness of the substrate surface. s high-magnification photomicrographs of the wear tracks on MoS2 films applied to a sandblasted substrate surface after 5, 15, 60, and 70 kilocycles of sliding. As sliding time increased, more M0S2 was transformed. Because more wear also occurred on the flat plateaus on the sandblasted asperities, new lubricant was exposed deeper in the valleys. Thus, the valleys in the rough surface served as reservoirs for the lubricant and as deposit sites for wear particles. If you are looking for high quality, high purity, and cost-effective Molybdenum disulfide or the latest price, please email contact mis-asia.