Ceramic material reinforced by the incorporation of TiC, TiCN and TiN whiskers and processes for production thereof

摘要

The whiskers-reinforced ceramics of the present invention is prepared from alumina powder activated by dry milling, with which Ti-based whiskers are mixed, by molding and sintering said mixture. By the present invention the bending strength of the sintered body can be increased without impairing the effect of improving the fracture toughness which is imparted by the incorporation of Ti-based whiskers, since the particle size of alumina crystal in the sintered body can be controlled to 3 microns or less.