Sintered ceramic body containing titanium carbonitride

Details Sintered ceramic body containing titanium carbonitride Sintered ceramic body containing titanium carbonitride

1983-03-16

1985-01-08

Bell, Mark

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 96, C04B 3556, C04B 3558

Patent

active

044927649

ABSTRACT:
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.degree. to 1800.degree. 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.

REFERENCES:
patent: 3741733 (1973-06-01), Kieffer
patent: 4022584 (1977-05-01), Rudy
patent: 4145213 (1979-03-01), Oskarsson et al.
patent: 4268582 (1981-05-01), Hale et al.

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