Titanium hafnium carbide-boride metal based ceramic sintered bod

Details Titanium hafnium carbide-boride metal based ceramic sintered bod Titanium hafnium carbide-boride metal based ceramic sintered bod

1989-05-23

1990-03-20

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 96, 51307, C04B 3556, C04B 3558

Patent

active

049101714

ABSTRACT:
The present invention is characterized by a ceramic sintered body consisting of (1) a primary mixed powder in which boride metal powder the MB.sub.2 type or M.sub.2 B.sub.5 type (M indicates the metal) is mixed with a titanium hafnium carbide powder; (2) a secondary mixed powder in which titanium carbonitride is mixed with the above-mentioned primary mixed powder; or (3) a tertiary mixed powder or a quaternary mixed powder in which carbide powder such as hafnium carbide or zirconium carbide is mixed with above-mentioned primary mixed powder or the secondary mixed powder. The resulting sintered bodies have high hardness and toughness.

REFERENCES:
patent: 3433471 (1969-03-01), Alper
patent: 4108670 (1978-08-01), Steiger et al.
patent: 4132534 (1979-01-01), Valdsaar
patent: 4451292 (1984-05-01), Hall et al.
patent: 4515746 (1985-05-01), Brun et al.

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