短炭纤维对铜-石墨复合材料冲击值的影响  

Effect of Short Carbon Fiber on the Impact Strength of Copper-Graphite Composites

作　　者：高强[1] 吴渝英[1] 洪駸 肖学明 

机构地区：[1]上海交通大学金属基复合材料国家重点实验室,上海200030

出　　处：《上海交通大学学报》2002年第1期36-38,共3页Journal of Shanghai Jiaotong University

摘　　要：以高性能受电弓滑板为应用前景 ,研究了短炭纤维对铜 -石墨复合材料冲击性能的影响 .用粉末冶金法制备了短炭纤维增强铜 -石墨复合材料 ,分析了短炭纤维的含量、分布和取向对复合材料冲击值的影响 .结果表明 ,在纤维体积分数从 1 .5 %增大到 1 1 .5 %时 ,复合材料冲击值先增大后逐渐减小 ;纤维的分布和取向对复合材料的冲击值也有较大影响 .试验证明 ,短炭纤维对于提高铜 -石墨复合材料的冲击值非常有效 ,短炭纤维增强铜Short carbon fiber reinforced copper graphite composite materials was studied based on advanced pantagraph slider as its application background. The short carbon fiber reinforced copper graphite composites was fabricated with powder metallurgy technology. The effect of fiber content, arrangement and distribution on the impact strength of composites was discussed in detail. With the increase of short carbon fiber between 1.5%～11.5% volume fraction, the impact strength of composites would increase accordingly at first then change to decrease. The arrangement and distribution of short carbon fiber also show great effect on the impact strength of composites. Carbon fiber is very effective in improving the impact strength of copper graphite composites. The short carbon fiber reinforced cooper graphite composite can be used to produce pantagraph slider of high performance.

关 键 词：短炭纤维 铜-石墨复合材料 冲击值 

分 类 号：TB331[一般工业技术—材料科学与工程]