Silicon carbide sintered body

Details Silicon carbide sintered body Silicon carbide sintered body

1976-06-21

1977-08-09

Douglas, Winston A.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

106 44, 264 65, C04B 3556, C04B 3564

Patent

active

040411176

ABSTRACT:
A silicon carbide sintered body characterized by its microstructural stability at high temperatures is produced by forming a mixture of .beta.-silicon carbide powder, .alpha.-silicon carbide seeding powder, boron additive and a carbonaceous additive into a green body and sintering it to produce a sintered body with a density of at least 80% wherein at least 70% by weight of the silicon carbide is .alpha.-silicon carbide.

REFERENCES:
patent: 3649310 (1972-03-01), Yates
patent: 3649342 (1972-03-01), Bartlett
patent: 3725099 (1973-04-01), Nazik
patent: 3853566 (1974-12-01), Prochazka

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