Tribological Properties of the Semi-metallic Friction Material with Nano-SiC

The tribological properties of the semi-metallic friction materials with nano-SiC were studied by the contrast experiments. The experimental result indicates that when the nano-SiC powder substitutes the generalSiC powder, the friction coefficient is not obviously improved. On the contrary, the wear rate increases a little.The friction surfaces and the mixed powder were examined by a scanning electron microscope and the experimental data were analysed. The main reason, which leads to the high wear, is found.