Low Speed Sliding Characteristics of Cu-Fe-W-Based Composite Material Contacts Containing WS2

Recently, Sliding electrical contacts are used in severe operating conditions, such as high temperatures, very low temperatures and ultra-high vaccums. They also require high reliability. In this research, three kinds of composite materials, containing different elements, make use of WS₂ show excellent characteristics in the atmospheres mentioned above. A Cu disk was examined as a partner materials. Consequently, it becomes clear that composite materials containing the smallest quantity (30 wt.%) have excellent characteristics in contact resistance and coefficient of friction.