C/C composites were prepared by infiltration of propane-derived pyrolytic carbon into carbon mat by a thermal gradient CVD technique.
The wear behavior of C/C composite was investigated by a pin-on-disc type wear appratus at low sliding velocity, in order to study frictional wear exclusive of oxidational wear. The effects of counterface materials, applied load, sliding velocity, matrix microstructure on the wear property were explained.
C/C composite and 304 stainless steel were used as counterface, and C/C composite counterface shows the higher wear rate and lower friction coefficient. The frictional film was formed only under 304 stainless steel surface during wear. The effect of the sliding velocity and applied normal load were related on wear velocity and friction cofficoent. This can be explained by the Pv factor. Isotropic structure has the lower wear rate and friction coefficient.
