An experimental study was conducted using a low-speed kineticfriction apparatus to show the effects of method of application and contaminants on the lubricating characteristics of molybdenum disulfide MoS2.nFriction coefficients for a purified grade of MoS2 can vary from 0.025 to 0.12 merely by changing the method of application. Contami¬nants present in commercial grades of MoS2 do not increase friction but can (e.g., 0.5 percent silica) adversely affect wear.
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