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Title: Hydridosiloxanes as precursors to ceramic products

Abstract

A method is provided for preparing ceramic precursors from hydridosiloxane starting materials and then pyrolyzing these precursors to give rise to silicious ceramic materials. Si-H bonds present in the hydridosiloxane starting materials are catalytically activated, and the activated hydrogen atoms may then be replaced with nonhydrogen substituents. These preceramic materials 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, metal silicates, and mullite.

Inventors:
; ;
Issue Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
489083
Patent Number(s):
5,635,250
Application Number:
PAN: 8-437,722
Assignee:
SRI International, Menlo Park, CA (United States) PTO; SCA: 400201; 360201; PA: EDB-97:086561; SN: 97001799037
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 3 Jun 1997
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; 36 MATERIALS SCIENCE; PRECURSOR; CERAMICS; CHEMICAL PREPARATION; SILOXANES; PYROLYSIS; SILICON OXIDES; SILICON NITRIDES; SILICON CARBIDES; SILICATES; MULLITE; CHEMICAL ACTIVATION

Citation Formats

Blum, Y.D., Johnson, S.M., and Gusman, M.I. Hydridosiloxanes as precursors to ceramic products. United States: N. p., 1997. Web.
Blum, Y.D., Johnson, S.M., & Gusman, M.I. Hydridosiloxanes as precursors to ceramic products. United States.
Blum, Y.D., Johnson, S.M., and Gusman, M.I. Tue . "Hydridosiloxanes as precursors to ceramic products". United States.
@article{osti_489083,
title = {Hydridosiloxanes as precursors to ceramic products},
author = {Blum, Y.D. and Johnson, S.M. and Gusman, M.I.},
abstractNote = {A method is provided for preparing ceramic precursors from hydridosiloxane starting materials and then pyrolyzing these precursors to give rise to silicious ceramic materials. Si-H bonds present in the hydridosiloxane starting materials are catalytically activated, and the activated hydrogen atoms may then be replaced with nonhydrogen substituents. These preceramic materials 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, metal silicates, and mullite.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {6}
}