Research on Tribological Properties of Nano-SiO2/Cu Composites
Cu-based nanometer composites with ω（n-SiO2）=1.0 % nano-SiO2 were prepared through ball milling and powder metallurgy technology. The friction and wear performance of the composites was investigated by ball-disk friction and wear tester. The microstructure and wear morphology were studied by drainage and field scanning electronic microscope (FSEM), respectively. The results indicate that ball milling can improve the spatial distribution of nano-SiO2 in the copper matrix. With the ball milling time increasing, the dynamic friction coefficient and wear rate of the composites decrease firstly and then increase. The composite milled 10 h has the lower friction coefficient and wear rate, and its main mechanism is abrasive wear.
Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen
J. H. Du et al., "Research on Tribological Properties of Nano-SiO2/Cu Composites", Advanced Materials Research, Vols. 581-582, pp. 487-490, 2012