Abstract
Since the discovery of carbon nanotubes (CNTs), the remarkable structural, electrical and mechanical properties as carbon material has attracted many researchers, and the synthesis of high quality CNTs using various methods have studied. Kusunoki et al. have reported that CNTs with high-density and well-alignment are formed vertically on a silicon carbide substrate. CNTs on SiC substrate could be used for tribomaterial as high friction or wear proof materials because each CNT covalently bonds with the SiC substrate. Thus, we have studied about wear property and wear mechanism of CNT film by micro-scratching test. Longer CNTs showed lower critical load than shorter CNTs. Considering the influence of the length and diameter of CNTs, wear property and wear mechanism of the CNT film were discussed.