文档介绍：第 18 卷第 8 期中国有色金属学报 2008 年 8 月
The Chinese Journal of Nonferrous Metals Aug. 2008
文章编号:1004-0609(2008)08-1453-05

纳米SiO2对铜基摩擦材料摩擦学性能的影响

杜建华,刘贵民,谢凤宽,李超,韩文政

(装甲兵工程学院装备再制造工程系,北京 100072)

摘要:采用粉末冶金法制备添加 %的纳米SiO2(n-SiO2)和 %Cu包覆纳米SiO2(Cu/n-SiO2)复合粉体的新型
铜基摩擦材料。采用惯性台架实验机,研究比较两种材料与未添加纳米SiO2的材料的摩擦学性能。结果表明:在
铜基摩擦材料中添加微量n-SiO2可改善材料的耐磨性和耐热性;添加Cu/n-SiO2的铜基摩擦材料,耐热性提高 32%,
耐磨性提高倍;添加n-SiO2的摩擦材料,耐热性提高 7%,耐磨性提高 18%;经铜包覆处理后的n-SiO2对材料
性能的影响优于未处理的n-SiO2。
关键词:铜基摩擦材料;纳米SiO2;摩擦,磨损;粉末冶金
中图分类号:TB 125 文献标识码:A

Effect of nano-SiO2 on tribological properties of
Cu-based friction materials

DU Jian-hua, LIU Gui-min, XIE Feng-kuan, LI Chao, HAN Wen-zheng

(Department of Arming Remanufacture Engineering, Academy of Armored Force Engineering,
Beijing 100072, China)

Abstract: Two types of Cu-based friction materials with % nano-SiO2 and % Cu-coated nano-SiO2 (Cu/nano-
SiO2) were obtained by powder metallurgy processes, respectively. The tribological properties of the two types of friction
materials were investigated by using inertia friction tester pared with that of the friction materials without
nano-SiO2. The results show that a small quantity of nano-SiO2 can improve the heat resistance and the wear resistance of
the friction materials, the heat resistance and the wear resistance of the friction mater