摘要
用MM 2 0 0型摩擦磨损试验机研究了Ag、Cu、Co、Cr、Fe、Mo、W、Ni、Zn、Pb、Sn、Al等金属粉末填充超高分子量聚乙烯 (UHMWPE)复合材料的摩擦磨损性能 ,利用扫描电子显微镜观察了复合材料磨损表面形貌。结果表明 :在低速条件下 ,金属填料可降低UHMWPE复合材料的摩擦系数 ;在高速条件下 ,金属填料对UHMWPE复合材料的摩擦系数影响不尽相同。Ag、Cu、Co、Cr、Fe、Mo、W、Ni、Zn、Pb等金属填料可使UHMWPE的耐磨性显著提高 ,而Sn、Al导致UHMWPE的磨损率增大 ;Ag的减摩抗磨效果最佳。
The friction and wear properties of ultra high molecular weight polyethylene (UHMWPE) and its composites filled with Ag, Cu, Co, Cr, Fe, Mo, W, Ni, Zn, Pb, Sn and Al particulates at a volume fraction of 25% were investigated on an MM-200 friction and wear tester. The worn surfaces of UHMWPE and its composites were examined with a scanning electron microscope. It was found that the metallic fillers contributed to decreasing the friction coefficient. Moreover, Ag, Cu, Co, Cr, Fe, Mo, W, Ni, Zn and Pb as the fillers decreased the wear rates of the UHMWPE matrix composites, while Sn and Al increased the wear rates, and Ag was the most effective in decreasing the friction and wear of the UHMWPE matrix composite.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2004年第6期917-919,共3页
Journal of Materials Science and Engineering
基金
国家自然科学基金资助项目 (50 32 30 0 7)
