Process for the production of oxidation-resistant sintered silic

Details Process for the production of oxidation-resistant sintered silic Process for the production of oxidation-resistant sintered silic

1980-09-30

1982-01-26

Beck, Shrive P.

Coating processes

Solid particles or fibers applied

427 94, 4271261, 4271264, 4273722, 428446, 428698, 428701, B05D 302

Patent

active

043128998

ABSTRACT:
A process for the production of oxidation-resistant sintered silicon nitride bodies having improved mechanical strength involves dissolving aluminum oxide, aluminum nitride, or mixtures thereof by diffusion in the surface of the sintered silicon nitride bodies. The diffusion is effected by embedding the bodies within powder of aluminum oxide, aluminum nitride or mixture thereof and by heating the embedded bodies to a temperature of at least 1300.degree. C.

REFERENCES:
patent: 3824120 (1974-07-01), Davidge et al.
patent: 3983198 (1976-09-01), Mangels
patent: 4112143 (1978-09-01), Adlerborn
patent: 4187344 (1980-02-01), Fredriksson

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