石墨/铜复合材料的载流摩擦磨损性能
Friction and Wear Properties with Electrical Current of Graphite/Copper Composites
摘 要
分别采用粒径为150 μm的镀铜石墨粉和不镀铜石墨粉, 通过冷压烧结法制备了不同成分的石墨/铜复合材料, 用销-盘式载流摩擦磨损试验机研究了石墨/铜复合材料的载流摩擦磨损性能, 利用扫描电镜对磨损表面进行了分析。结果表明: 在试验参数范围内, 采用镀铜石墨粉能够有效降低复合材料的摩擦因数, 但对耐磨性能影响趋势不明显; 随石墨含量的增加, 复合材料摩擦因数减小; 石墨质量分数为10%时, 复合材料的磨损率最低。
镀铜石墨
载流摩擦磨损
冷压烧结法
graphite/copper composite
copper-plating graphite
friction and wear with electrical current
cold-press sintering method
Abstract
Graphite/copper composites were prepared by cold-press sintering method using 150 μm graphite powders with and without copper plating respectively. The friction and wear properties with electrical current of the composites were studied using a pin-disc testing machine, and the worn surface was analyzed by SEM. The results show that within the studied range, the friction coefficient of the composites decreased effectively by using copper-plating graphite, but the effect of copper-plating on wear resistance was not obvious The friction coefficient of the composites decreased with the increase of graphite content. The wear rate of the composite was the lowest when graphite content was 10wt%.
中图分类号 TB332
所属栏目 材料性能及其应用
基金项目 国家自然科学联合基金资助项目(U1034002); 国家“973”计划前期研究专项(2010CB635113); 国家自然科学基金资助项目(50975078)
收稿日期 2012/2/7
修改稿日期 2012/12/21
网络出版日期
作者单位点击查看
备注李雪飞(1988—), 男, 河南渑池人, 硕士研究生。
引用该论文: LI Xue-fei,SHANGGUAN Bao,ZHANG Yong-zhen. Friction and Wear Properties with Electrical Current of Graphite/Copper Composites[J]. Materials for mechancial engineering, 2013, 37(4): 54～57
李雪飞,上官宝,张永振. 石墨/铜复合材料的载流摩擦磨损性能[J]. 机械工程材料, 2013, 37(4): 54～57
被引情况:
【1】李杨绪,朱德贵,彭 旭,周加敏, "20%C/Cu复合材料的载流摩擦磨损性能",机械工程材料 40, 81-87(2016)
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【4】ZHAN Y Z, ZHANG G D, WU Y Y. Effect of surface metallization of graphite on the tribological properties of copper hybrid composites[J].Scandinavian Journal of Metallurry, 2004, 33(2): 80-87.
【5】蒋文忠.石墨粉末镀铜工艺及性能的研究[J].炭素技术, 2002(5): 23-25.
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【7】HE D H, MANORY R. A novel electrical contact material with improved self-lubrication for railway current collectors[J].Wear, 2001, 249(7): 626-636.
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