Method for preparing silicon nitride and silicon nitride composi

Details Method for preparing silicon nitride and silicon nitride composi Method for preparing silicon nitride and silicon nitride composi

1997-10-24

1999-11-09

Gorgos, Kathryn

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415443, 20415745, 528 28, 423344, C01B 5300, C01B 2500

Patent

active

059806990

ABSTRACT:
A method of producing silicon nitride ceramics and silicon nitride ceramic composites. A mixture comprising a polysilazane and an additive effective to increase coupling between the mixture and electromagnetic energy is converted to a preceramic intermediate. The preceramic intermediate is treated with electromagnetic energy and thereby converted to a silicon nitride ceramic and/or a silicon nitride ceramic composite.

REFERENCES:
patent: 5093096 (1992-03-01), Okamura et al.
patent: 5198519 (1993-03-01), Mosher et al.
PMSE Polymeric Materials Science and Engineering, vol. 71, Fall Meeting Washington, DC. 1994 no month available.

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