Diamond composites hold promise as a tribological material because of low friction and high wear resistance. We studied friction and wear or polyimide-20vol% PTFE-diamond composites in open air at room temperature, focusing on the effects of diamond s...
Diamond composites hold promise as a tribological material because of low friction and high wear resistance. We studied friction and wear or polyimide-20vol% PTFE-diamond composites in open air at room temperature, focusing on the effects of diamond size, and diamond content, sliding conditions, and mating material. Friction coefficient and wear lend to increase with increasing diamond size and content. Composites of appropriate diamond size and content showed a friction coefficient below 0.1 and specific wear of 10?? ㎣/Nm. Friction and wear of composites sliding against stainless steel were higher than those of Al₂O₃ an increase that became increasingly not able with increasing diamond size.