Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...
Patent
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.
Charles Richard J.
Giddings Robert A.
Greskovich Charles D.
Prochazka Svante
Bell Mark
Binkowski Jane M.
Davis Jr. James C.
General Electric Company
MaLossi Leo I.
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