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Abstract In this study, the tribological behaviour of Ni-promoted MoS 2 (Ni-MoS 2 ) nanosheets were investigated using a four ball wear tester according to ASTM D4172 standard. The Ni-MoS… Click to show full abstract
Abstract In this study, the tribological behaviour of Ni-promoted MoS 2 (Ni-MoS 2 ) nanosheets were investigated using a four ball wear tester according to ASTM D4172 standard. The Ni-MoS 2 nanosheets were chemically exfoliated in two steps, namely ultrasonication and simple reflux techniques. The physicochemical characteristics confirm that the obtained Ni-MoS 2 nanosheet was well exfoliated and have excellent dispersibility. Base oil containing 0.5 wt% Ni-MoS 2 nanosheets significantly enhances the antiwear property (40–50%) and slightly reduces the friction coefficient (15–20%) between the tribo-interfaces, due to its small size and surface modifying behaviour compared to base oil. Thus, the work augments the potential applications of Ni-MoS 2 nano-additives in automotive industries.
Journal Title: Tribology International
Year Published: 2018
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