Gas tight silicon carbide body

Details Gas tight silicon carbide body Gas tight silicon carbide body

1976-06-14

1978-01-24

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

156 89, 156296, 156304, 156336, 252516, 416241B, C04B 3556, C04B 3570

Patent

active

040701972

ABSTRACT:
A gas impermeable hollow silicon carbide body is formed by slip-casting two separate hollow silicon carbide bodies, the two separate bodies are then cemented together by means of a silicon carbide slip and then the joined pieces are fired at a temperature sufficiently elevated to recrystallize the cast bodies and to form a recrystallized joint between the two pieces, thereafter the body is subjected to a silicon atmosphere to deposit sufficient additional silicon in the body to provide a structure which is essentially impermeable to gases.

REFERENCES:
patent: 2319323 (1943-05-01), Heyroth
patent: 2964823 (1960-12-01), Frederiksson
patent: 3482791 (1969-12-01), Alliegro
patent: 3923314 (1975-12-01), Lawler et al.
patent: 3966885 (1976-06-01), May

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