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对采用粉末冶金法制备的含不同质量分数的碳纤维－中铜－石墨复合材料，在滑动速度为１５ｍ／ｓ，载荷４．９Ｎ的条件下，分别进行了５０ｈ的不通电和通电干摩擦试验，并用扫描电镜对其磨损表面进行了观察分析．结果表明：在无电流干摩擦条件下，随碳纤维含量的增加，复合材料的摩擦系数和磨损量逐渐减小；而在电流密度为２０Ａ／ｃｍ２时，复合材料的摩擦系数比不通电时小，但磨损量比不通电时大３～７倍，磨损机理也有差别．
The carbon fiber-copper-graphite composites with different mass fractions prepared by powder metallurgy method were respectively subjected to a non-energized and energized dry friction test for 50 hours at a sliding speed of 15 m / s and a load of 4.9 N, The wear surface was observed by scanning electron microscope. The results show that under the condition of no current and dry friction, the friction coefficient and wear amount of the composite decrease with the increase of the carbon fiber content. When the current density is 20A / cm2, the friction coefficient of the composite is smaller than that of the non- However, the wear rate is 3 to 7 times larger than that when no power is applied, and the wear mechanism is also different.