A Study on the Friction and Wear Properties of Ceramic-Enhanced Cu-Based Composites

Ceramic-enhanced Cu-based friction materials were fabricated by powder metallurgy.The friction and wear propertieswere measured by a friction tester under different pressures,friction speeds and wet/dry conditions.In the cases of dry friction,the friction coefficients are larger than 0.3 and stable.As the friction pressure varies within 0.5～0.6MPa,the fricition coefficient is lower,and the friction pressure has little effects on the wear rate.A maximum friction coefficient is found at the speed of 2000r/min.The materials exhibit lower friction coefficients under wet conditions than dry conditions.