Investigation of second phase concentration effects on tribological and electrical properties of Cu–WS2 composites

In this preliminary study, a set of self-lubricating copper-tungsten disulfide (Cu-WS2) composites are prepared via powder metallurgy route to analyze the effects solid lubricant concentration on their tribological, electrical and wettability properties. An extensive characterization is performed preliminarily assess potential application these metal matrix (MMCs) in sliding contacts working under harsh conditions. The experimental results reveal beneficial effect WS2 wear behavior composites, as demonstrated by friction coefficient, specific rate coefficients results. A second phase content 10–15 wt% range appears guarantee better combination desired features.