Friction and Wear Behaviors of C/C-SiC under Water Lubrication

C/C-SiC composites,prepared by a modified thermal gradient chemical vapor infiltration（preparing C/C） combined with reactive melt infiltration（infiltrating Si）,were studied for the friction and wear behaviors in this paper.The results show that during block-on-ring tests under water lubrication,the friction coefficient and specific wear rate of C/C-SiC samples increase with the increasing of load,but decrease with the increasing of sliding velocity,and the sliding velocity is with greater effect on the friction and wear behaviors than the load does.The C/C-SiC samples mainly subject to the grain wear and fracture wear in the process of friction.