Method for reducing the gas permeability of a sintered porous si

Coating processes – Foraminous product produced

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427226, 427344, 423344, 423471, 106 735, 423413, C01B 2106

Patent

active

041222202

ABSTRACT:
Silicon nitride bodies are improved by being impregnated with a silicon halide which is then converted to silicon imide in the pores of the body, which, in turn, is converted into silicon nitride.

REFERENCES:
Mazdiyasni et al., "J. of American Ceramic Soc.", vol. 56, No. 12, pp. 628-633, 1973.

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