Tantalum-doped molybdenum disulfide/tungsten disulfide multi-layer film as well as preparation method and use thereof

Abstract

The tantalum-doped molybdenum disulfide/tungsten disulfide (MoS2/WS2) multi-layer film includes a titanium transition layer, a titanium/tantalum/molybdenum disulfide/tungsten disulfide (Ti/Ta/MoS2/WS2) multi-layer gradient transition layer, and a tantalum-doped MoS2/WS2 multi-layer layer which are successively laminated in a thickness direction. The preparation method includes: successively depositing the titanium transition layer, the Ti/Ta/MoS2/WS2 multi-layer gradient transition layer, and the tantalum-doped MoS2/WS2 multi-layer layer on the surface of a matrix by adopting a magnetron sputtering technology to obtain the tantalum-doped MoS2/WS2 multi-layer film. The tantalum-doped MoS2/WS2 multi-layer film has good matrix binding strength, hardness and elasticity modulus, good friction and abrasion performance, good temperature self-adopting performance, heat and humidity resistance, and high temperature oxidization resistance under an atmospheric environment at different temperatures, and can meet the requirements of stable lubrication and long-life service of aerospace vehicles.

Dependencies are inferred from the claim text.