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U.S. Department of Energy
Office of Scientific and Technical Information

Sintered ceramic body containing titanium carbonitride

Patent ·
OSTI ID:5740742
A refractory ceramic body having excellent bending strength and high hardness and with little porosity is obtained by sintering a powdery mixture comprising 5 to 95% by weight of a titanium carbonitride and 95 to 5% by weight of a metal boride such as metal diborides, e.g. titanium diboride, W/sub 2/B/sub 5/ and Mo/sub 2/B/sub 5/ at a temperature of 1700/sup 0/ to 1800/sup 0/ C. Further improvements can be obtained by partial replacement of the above mentioned components with elementary boron, titanium carbide or titanium nitride or when the titanium carbonitride component is a combination of at least two kinds of titanium carbonitrides having different chemical compositions relative to the proportion of the carbon and nitrogen.
Assignee:
Agency of Industrial Science and Technology (Japan)
Patent Number(s):
US 4492764
OSTI ID:
5740742
Country of Publication:
United States
Language:
English