FIBER REINFORCED SILICON NITRIDE CERAMIC COMPOSITE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a fiber reinforced ceramic composite material having a coating film, which has an improved bonding strength with silicon carbide and is formed on the surface of a carbon fiber as a reinforcing fiber. SOLUTION: A structural body 12 is formed from a raw material prepared by mixing silicon carbide containing <=5% iron as an impurity and a sintering assistant with the carbon fiber having the coating film of silicon carbide uniformly and incorporating a tungsten wire 6 provided with a coating film 5 of a WSi2 on its surface layer 12a and is sintered.