| abstract |
(57) [Summary] [Problem] Based on SiC and carbon, the theoretical density of 9 A ceramic composite having a density greater than 0% is provided. SOLUTION: The ceramic composite material has a silicon carbide part 9. 9.9% by mass to 70% by mass and carbon portion 0.1% by mass 30% by mass, SiC has a microstructure having a bimodal particle structure, and the average particle size of all SiC particles is 1 A bimodal equiaxed grain structure of greater than 0 μm and having a SiC microstructure has an average grain size of less than 10 μm and a fine-grained portion having a proportion of 10-50 area% as measured on a polished, flat polished surface and an average grain size of 10-1000 μm And formed from coarse-grained portions having a proportion of 50-90 area% as measured on a polished, flat polished surface, wherein the carbon has an average particle size of less than 10 μm. |