Friend or Foe? Revising the Role of Oxygen in the Tribological Performance of Solid Lubricant MoS₂.

ABSTRACT: Molybdenum disulfide (MoS₂) is a solid lubricant used in various forms, such as a dry lubricant by itself or as a component of a more complex coating. In both these forms, the effect of oxygen contamination on the sliding properties of the MoS₂ coatings is traditionally considered detrimental, resulting in expensive technological processes to produce pure MoS₂. Here, it is shown that the high oxygen content does not necessarily hinder the solid lubricant properties and may even result in a lower friction and wear when compared to pure MoS₂. Mo-S-O coatings were fabricated by unbalanced magnetron sputtering and tribologically tested under vacuum conditions. Oxygen caused amorphization of the as-deposited coatings but did not prevent the triboactiv

SUBMITTER: Bondarev A 

PROVIDER: S-EPMC9756294 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature