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本文采用化学镀铜法对短碳纤维表面进行镀铜,并用电镀法对长碳纤维表面进行连续镀铜后,再切割成镀铜短碳纤维。随后用粉末冶金法制备了含有这两种镀铜短碳纤维的碳纤维-铜-石墨复合材料和不含碳纤维的铜-石墨复合材料,对它们的物理和力学性能进行了测试,并在滑动速度为15m/s、载荷为4.9N的干摩擦条件下进行了30h磨损试验,结果表明:化学镀铜短碳纤维-铜-石墨复合材料的导电性、硬度、抗弯强度和耐磨性优于电镀铜短碳纤维-铜-石墨复合材料和不含碳纤维的铜-石墨复合材料。
In this paper, the surface of short carbon fiber is plated with copper by electroless copper plating method, and the surface of long carbon fiber is plated with copper continuously by electroplating method, and then cut into copper short carbon fiber. Subsequently, the carbon fiber-copper-graphite composites containing these two types of copper-plated short carbon fibers and the copper-graphite composites containing no carbon fibers were prepared by powder metallurgy, and their physical and mechanical properties were tested. When the sliding speed was 15m / s and 4.9N load. The results show that the electrical conductivity, hardness, flexural strength and wear resistance of electroless copper short carbon fiber-copper-graphite composite are better than that of copper electroplating Short carbon fiber-copper-graphite composites and copper-graphite composites without carbon fibers.