Development of manufacturing method for NITE-porous SiC ceramics using decarburization process

摘要

The objective of this work is to develop manufacturing method of porous SiC ceramics with mechanical and chemical stability. The nanoinfiltration transient eutectic (NITE)-porous SiC ceramics were fabricated by decarburization of the hot-pressed NITE-SiC including carbon particles. Porosity could be controlled at less than + - 0.5 percent by the amount of carbon particles. The NITE-porous SiC ceramics exhibited a substantially high strength in comparison with other conventional porous SiC ceramics, due to its robust microstructure consisted of spherical pores.