Abstract
For the development of new advanced carbon materials, carbon/metal composites were prepared by using HIP for impregnation. Different metals, Sb, Al, Ag and Cu were impregnated into open pores of carbon materials at a temperature, 100∼150°C higher than the melting points of these impregnants, undera pressure of 10∼12 MPa. Sb-impregnated graphite exhibited gas imperviousness and good performance for sliding component or low friction coefficient and high wear resistance. Al-impregnated carbon material has a high mechanical strength and elastic modulus with moderate thermal expansion coefficient. Cu-impregnated carbon materials which has excellent properties for sliderfor pantograph of electric car has been developed.
