Papers by Author: Cheng Nan Zhu

Abstract: Copper-plated short carbon fiber/copper-plated Ti₃SiC₂-Cu-graphite composite, copper-plated short carbon fiber/Ti₃SiC₂-Cu-graphite composite with the same carbon fiber content and copper-plated Ti₃SiC₂-Cu-graphite composite were prepared by the powder metallurgy method. Physical and mechanical properties of these composites were tested. The dry friction tests of the composites under sliding velocity of 10m/s and load of 4.9N were conducted for 36 hours. The results show that the properties of the Cf-copper-plated Ti₃SiC₂-Cu-graphite composite such as electric conductivity, bending strength and wear resistance are remarkably increased than those of either Cf-Ti₃SiC₂-Cu-graphite or copper-plated Ti₃SiC₂-Cu-graphite composites.

Abstract: Copper-plated TiB2-Cu-graphite composite, Cf-TiB2-Cu-graphite composite and Cf-copper-plated TiB2-Cu-graphite composite with the same TiB2 content were prepared by the powder metallurgy method. Physical and mechanical properties of these composites were tested. The dry friction tests of the composites under sliding velocity of 10m/s and load of 4.9N were conducted for 36h. The results show that the properties of the Cf-copper-plated TiB2-Cu-graphite composite such as electric conductivity, hardness, bending strength and wear resistance are increased remarkably than those of either Cf-TiB2-Cu-graphite or copper-plated TiB2-Cu-graphite composites.