粉末冶金技术2012，Vol.30Issue(5)：358-362,5.
表面改性纳米SiO2对铜基摩擦材料摩擦学性能的影响
Effects of surface modification of nano-SiO2 on friction properties of Cu-based friction materials
许成法 1韩建国 1杜建华2
作者信息
- 1. 杭州粉末冶金研究所,杭州311203
- 2. 装甲兵工程学院装备再制造工程系,北京100072
- 折叠
摘要
Abstract
Novel Cu-based friction materials enhanced by Cu and Ni coated nano-SiO2 particles were prepared by powder metallurgy, respectively. The friction properties and heat resistance of ihe friction materials were investigated through 1: 1 inertia bench tester. Microstructure of the friction materials, hardness of the matrix and wear mechanisms were investigated by scan electronic microscope ( SEM ) and microhardness tester, et al. The results indicate that n-SiO2 particles can refine particles of the matrix and enhance the hardness of the matrix. The wear resistant of the friction materials with Cu/n-SiO2 and Ni/n-SiO2 is 3. 95 times and 7. 46 times higher than that without surface modification of n-SiO2, respectively. The wear mechanism of the n-SiO2 enhanced frictions materials is abrasive wear of furrow type.关键词
铜基摩擦材料/粉末冶金/纳米SiO2/包覆/摩擦磨损Key words
Cu-based friction materials/ powder metallurgy/ nano-SiO2/ coated/ friction and wear引用本文复制引用
许成法,韩建国,杜建华..表面改性纳米SiO2对铜基摩擦材料摩擦学性能的影响[J].粉末冶金技术,2012,30(5):358-362,5.
