中文摘要：

采用内氧化法制备Cu-La2O3复合材料。以该复合材料为销试样，轴承钢为盘试样，进行载流条件下的高速摩擦磨损试验，并对销试样摩擦表面进行微观形貌分析。结果表明：在试验条件下，Cu-La2O3复合材料的磨损率随电流的增加而增大，随载荷增加先降低后增加。复合材料的干滑动摩擦磨损机制主要是磨粒磨损、粘着磨损及电弧侵蚀磨损。

英文摘要：

The Cu-La2O3 composites were prepared by internal oxidation. Effects of electrical current and applied load on the frictional characteristics of the composites and copper against GCrl 5 bear steel were investigated and compared. The results show that the wear rate of Cu-La2O3 composites increases with increasing of electrical current. However, the wear rate of the composites first decreases and then increases with increasing applied load. The main wear mechanisms for Cu-La2O3 composites are of abrasion, adhesion and electrical erosion.