Sintering of silicon nitride using Be additive

Details Sintering of silicon nitride using Be additive Sintering of silicon nitride using Be additive

1979-08-13

1980-09-30

Vertiz, O. R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

C04B 3558

Patent

active

042253560

ABSTRACT:
A particulate dispersion of silicon nitride and beryllium additive is formed into a green body and sintered at a temperature ranging from about 1900.degree. C. to about 2200.degree. C. in a sintering atmosphere of nitrogen at superatmospheric pressure producing a sintered body with a density ranging from about 80% to about 100%.

REFERENCES:
patent: 3953221 (1976-04-01), Lange
patent: 3992497 (1976-11-01), Terwilliger et al.
patent: 4017319 (1977-04-01), Greskovich et al.
Mitomo, M., "Pressure Sintering of Si.sub.3 N.sub.4," Journal of Materials Science, 11, (1976), pp. 1103-1107.

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