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Abstract In this paper, nanosized MoS 2 deposited on graphene (MoS 2 /Gr) were prepared and used as additives in polyalkylene glycol (PAG) for steel/steel contact. Tribological results indicated that… Click to show full abstract
Abstract In this paper, nanosized MoS 2 deposited on graphene (MoS 2 /Gr) were prepared and used as additives in polyalkylene glycol (PAG) for steel/steel contact. Tribological results indicated that MoS 2 /Gr suspended in PAG exhibited a substantial reduction in friction and wear compared to the neat oil and the oil plus graphene, microsized MoS 2 and graphene mixed with microsized MoS 2 at elevated temperature. The significantly better tribological behavior of this hybrid lubricant can be explained by the fact that nanosized MoS 2 on graphene can enter the contact area of the opposite sliding surfaces and form thin, durable, and stable surface boundary layers that maintain low friction and wear. Additionally, the thermal conductivity (TC) and rheological properties of this nanofluid were also investigated.
Journal Title: Tribology International
Year Published: 2017
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