Improvement of the Dry Friction and Wear Properties of the Si/SiC by Doping with Ni and PbO
The composite of silicon carbide with nickel and lead oxide was prepared by reaction sintered method. The phase compositions of the composites were studied by XRD, SEM and EDX. Friction and wear properties of the composites in dry conditions at the temperatures 15°C, 300°C and 600°C were tested using a pin-on-disk tribometer. The results showed that NiSi2 was formed and located between the SiC particles during sintering process. However the PbO was remained and distributed uniformly in the composites besides a little of Pb4SiO6 were formed. Friction coefficient of the composites decreased with the increase of the temperature and was about 0.2 at 600°C. And wear resistance of the composites was improved at all test temperatures comparing with that of the Si/SiC.
Hyungsun Kim, JianFeng Yang, Tohru Sekino, Masakazu Anpo and Soo Wohn Lee
K. Z. Sang et al., "Improvement of the Dry Friction and Wear Properties of the Si/SiC by Doping with Ni and PbO", Materials Science Forum, Vol. 658, pp. 456-459, 2010