| abstract |
In the present invention, a solid solution composed of carbide, carbonitride, or a mixture of two or more metals selected from the group IVa, Va, and VIa metals of the periodic table, including titanium, and a solid solution without a core structure. A powder, a cermet powder comprising the same, ceramics sintered from the solid solution powder, and a cermet sintered from the powder for the cermet are disclosed, and a method for producing such a solid solution powder, cermet powder, ceramics and cermet is also disclosed. According to the present invention, by providing a completely solid solution phase in the fine structure of TiC-based or Ti (CN) -based composite powder, it improves the toughness of high-hardness ceramics without a metal binder or the toughness of a cermet material in which the metal binder is present. Significantly improve. It has the advantage of being able to sinter directly without additional mixing, and because of its excellent overall mechanical properties, it replaces WC-Co cemented carbide material, achieving the effect of providing a hard cutting tool or a tough cutting tool.n n n n Carbon powder, Carbonitride, Carbide, Core structure, Complete solid solution, High toughness, Hardness, Cermet |