Abstract
In the present work, WS2–MoS2 nanocomposite films were sputtered, based on which solid/liquid-lubrication systems were realized by combining the WS2–MoS2 films with space oils including MACs (multialkylated cyclopentanes) and CPSO (chlorinated-phenyl with methyl-terminated silicone oil). The tribological behaviors of the solid/liquid systems were investigated in vacuum. It was revealed that in comparison to pure WS2 film, the WS2–MoS2 composite film exhibited an enhanced tribological performance. Moreover, our results identified that the WS2–MoS2/MACs system integrated better the advantages of the solid and liquid lubrications and thereby a synergistic lubricating effect was generated. A tribological model was established to explain the synergistic lubricating mechanism.
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