【摘要】 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。更多还原

【Abstract】 The surfaces of short carbon fibers were coated by electroless copper plating method,and the long carbon fibers coated by continuous electroplating copper method were cut short.The carbon fiber-copper-graphite composites with the two kinds of short carbon fibers and the copper-graphite composite without short carbon fibers were prepared by the powder metallurgy method.Their physical and mechanical properties were tested.The dry friction tests of the composites under sliding velocity of 15 m/s and load of 4.9 N were conducted for 30 h.The results show that such properties of the electroless copper plating on short carbon fiber-copper-graphite composite as electric conductivity,hardness,bending strength and wear resistance are increased much more remarkably than those of the electroplating copper short carbon fiber-copper-graphite and copper-graphite composite without short carbon fiber.更多还原