Abstract
Effects of graphite size and volume fraction on mechanical and tribological properties of Cu-Sn-graphite composites produced by a powder metallurgy process were investigated in order to develop a suitable self-lubricating material. The graphite size and volume fraction were varied from 3μm to 2.3mm, and from 0 to 40 vol%, respectively. The density, microstructure, bending strength, wear rate and coefficient of friction of the sintered composites were examined. It was found that the composite containing 20 vol% graphite of 100μm in size showed the best performance in mechanical and wear properties.
