Microstructural and tribological characterization of MoS2–Ti composite solid lubricating films

摘要: Abstract Sputtered MoS 2 thin films provide lubrication and wear improvements for vacuum space applications. When exposed to humid environments, however, the are prone rapid deterioration by oxidation. In this study, we synthesized a composite coating, which consists of titanium metal solid lubricating layers unbalanced magnetron sputtering process. Experimental results indicate that Ti interlayers among –Ti effectively enhance density stability film structure. Transmission electron microscopy, X-ray diffractometry, Raman analyses reveal amorphous nature contains only short-range order within interlayers. Ball-on-disc tribotests show higher friction coefficient, increased life microhardness, reduced debris as in thickness. addition its densification strengthening effect, interlayer also reacts preferentially with oxygen form TiO thus suppresses adverse oxidation . Thus, is highly promising lubricant, evidenced prolonged resistance