Hydridosiloxanes as precursors to ceramic products

Details Hydridosiloxanes as precursors to ceramic products Hydridosiloxanes as precursors to ceramic products

1992-07-02

1994-06-07

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

516 10, 516 11, 516173, 516402, 516405, 516410, 516415, 516435, 516451, 516459, 501 88, 501 96, 501 97, 534 11, 534 15, 528 15, 528 16, 528 19, 528 29, 528 31, C07F 708, C07F 710

Patent

active

053191218

ABSTRACT:
A method is provided for preparing preceramic polymers and and silicious ceramic materials which derive therefrom. The preceramic polymers are polysiloxanes which are synthesized by catalytically activating Si--H bonds in a hydridosiloxane starting material and replacing the activated hydrogen atoms with non-hydrogen substituents. These preceramic polysiloxanes are pyrolyzed in a selected atmosphere to give the desired ceramic product. Ceramic products which may be prepared by this technique include silica, silicon oxynitride, silicon carbide, and metal silicates.

REFERENCES:
patent: 4985578 (1991-01-01), Trego

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