Influence of the chemical composition and local atomic packing of nanostructured MoSx and MoSex solid lubricant coatings on their tribological properties under complicated conditionsстатья
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Дата последнего поиска статьи во внешних источниках: 23 января 2026 г.
Аннотация:We present the results of a comparative investigation of the friction and wear characteristics of MoSx and MoSex coatings in an oxidizing medium (argon–air mixture) at a temperature of –100°C. Thin films of these solid lubricants were manufactured by pulsed laser deposition using MoS2, MoSe2, and Mo targets in vacuum and H2S. It was established that S-containing coatings ensured a friction coefficient of ~0.09 and were much superior to S-containing coatings in respect of wear. The properties of MoSx coatings depended on the concentration of S that determined the local atomic packing in the amorphous structure of the film. The friction coefficient of MoS3 coating after running-in was half as small as that of MoS2 and amounted to 0.08.Keywords: solid lubricants, thin films, friction coefficient, wear, amorphous structure, local atomic packing.