Effects of Ti2SnC on the mechanical properties and tribological properties of copper/graphite composites

Copper/graphite composites and copper/graphite/Ti2SnC composites were fabricated through the process of ball-milling, pressing and sintering. The effects of Ti2SnC as the second lubrication component on the mechanical properties, wear resistance and lubrication properties of copper/graphite composites were studied in this paper. The results showed that copper/graphite/Ti2SnC composites had better hardness, impact toughness, wear resistance and lubrication performance than copper/graphite composites. The optimum values of hardness, impact toughness, friction coefficient and wear rate of copper/graphite/Ti2SnC composites were, respectively, 56 HSD, 1.8J/cm(2), 0.15, 9.126 x 10(-6) mm(3)/N.m, while these were only 45 HSD, 1.2 J/cm(2), 0.17, 3.534 x 10(-4) mm(3)/N.m of copper/graphite composites.

Automated summary

Copper/graphite/Ti2SnC composites with good mechanical properties, wear resistance and lubrication performance were fabricated, showing better hardness, impact toughness, wear resistance and lubrication properties than copper/graphite composites.