摘要
研究了用粉未冶金方法制造短碳纤维-铜复合材料,对这种复合材料的力学性能及物理性能进行了测试,证明该复合材料中,碳纤维与铜基体间存在着界面结合。
Short cabon fiber-copper composite were made by means of powder me-tallurgy.The fibers in composite were homgeneously distributed in the matrix and orientedrandomly.The tensile strength of the composite increases as the volume of fiber from 0 to2%,but decreases as the volume of fiber increases further.The thermal expansioncoefficient,thermal conductivity and electrical conductivity of the composite become smal-ler as the volume of fiber increases.While heating or cooling to reach certain temperature,the value of thermal expansion coefficiet,thermal conductivity and electrical conductivityremained almost the same.Interface bond exists between short carbon fiber and copper ma-trix.
基金
国家自然科学基金
58971036
关键词
碳纤维
铜一碳
复合材料
carbon fiber
copper-carbon composite
thermal conductivity
electrical conductivity
