| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ceramic composite sintered body for a mold which prevents fusion between a molding material and the mold for molding, and its manufacturing process. <P>SOLUTION: A mixed powder of at least one ceramic powder chosen from silicon nitride, silicon carbide, titanium nitride, titanium carbide, boron nitride and titanium boride having an average particle size of ≤100 nm and a carbon powder having an average particle size of ≤100 nm is molded and sintered to obtain the ceramic composite sintered body comprising a ceramic material having an average particle size of ≤200 nm and 10-80 vol% carbon having an average particle size of ≤200 nm. The sintered body is mirror finished to achieve a surface roughness Ra of ≤0.05 μm after the finishing and used as a material for the mold. <P>COPYRIGHT: (C)2004,JPO |
