| abstract |
The SiC ceramic material according to the present invention comprises a bundle of SiC continuous fibers in a porous SiC ceramic base material, has thermal insulation, has not only high strength but also high toughness. The SiC ceramic structural body according to the present invention comprises a SiC ceramic material and a sintered body made of a slurry of SiC powder and carbon powder mixed in a liquid such as water and a bundle of SiC continuous fibers, By vaporization and emulsification. The SiC ceramic structure according to the present invention comprises a reaction sintered body obtained by heating a reaction preform comprising a bundle of SiC continuous fibers, a carbon component and a Si powder to a temperature equal to or higher than the melting point of silicon and reacting the carbon component with Si powder But also by vaporizing and releasing the residual carbon component. Furthermore, the SiC ceramic structure according to the present invention can be produced by a chemical vapor deposition method. |