Silicon nitride-containing ceramic material prepared by pyrolysi

Details Silicon nitride-containing ceramic material prepared by pyrolysi Silicon nitride-containing ceramic material prepared by pyrolysi

1985-01-07

1985-09-24

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

264 63, 264 65, 423344, 501 95, 501 97, C04B 3558

Patent

active

045433445

ABSTRACT:
A process is disclosed for preparing R.sub.3 SiNH-containing hydrosilazane polymer by contacting and reacting trichlorosilane with a disilazane (R.sub.3 Si).sub.2 NH where R is vinyl, hydrogen, phenyl, or alkyl radicals containing 1 to 3 carbon atoms. These hydrosilazane polymers are useful, when fired at high temperatures, in the formation of silicon nitride and silicon nitride-containing ceramic materials.

REFERENCES:
patent: 3853567 (1974-12-01), Verbeek
patent: 3892583 (1975-07-01), Winter et al.
patent: 4312970 (1982-01-01), Gaul
patent: 4340619 (1982-07-01), Gaul
patent: 4397828 (1983-08-01), Seyferth et al.

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