Effect of Matrix Carbon on Friction and Wear Property of Carbon/Carbon Composite

Pitch-matrix carbon/carbon composites(P-C/C) and pitch phenolic resin matrix carbon/carbon composites(D-C/C) were prepared using liquid impregnation/carbonization method.Densification efficiency,flexural strength and friction and wear properties of two kinds of carbon/carbon composites were studied.The results show that P-C/C exhibited higher densification efficiency than D-C/C.When the volume densities of the two kinds of carbon/carbon composites were the same,no apparent difference was shown in flexural strength.D-C/C showed a higher friction coefficient and fairly serious wear.The difference of structures and properties of matrix carbon caused different friction and wear properties of these two kinds of carbon/carbon composites mainly.