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:
-
- San Jose, CA
- Piedmont, CA
- Palo Alto, CA
- Issue Date:
- OSTI Identifier:
- 870979
- Patent Number(s):
- 5635250
- Assignee:
- SRI International (Menlo Park, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- DOE Contract Number:
- N00014-85C-0668
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- hydridosiloxanes; precursors; ceramic; products; method; provided; preparing; hydridosiloxane; starting; materials; pyrolyzing; rise; silicious; si-h; bonds; catalytically; activated; hydrogen; atoms; replaced; nonhydrogen; substituents; preceramic; pyrolyzed; selected; atmosphere; desired; product; prepared; technique; silica; silicon; oxynitride; carbide; metal; silicates; mullite; ceramic products; ceramic product; hydrogen atoms; starting material; ceramic material; silicon carbide; ceramic materials; starting materials; ceramic precursor; hydrogen atom; silicon oxynitride; selected atmosphere; preparing ceramic; ceramic mater; /427/501/
Citation Formats
Blum, Yigal D, Johnson, Sylvia M, and Gusman, Michael I. Hydridosiloxanes as precursors to ceramic products. United States: N. p., 1997.
Web.
Blum, Yigal D, Johnson, Sylvia M, & Gusman, Michael I. Hydridosiloxanes as precursors to ceramic products. United States.
Blum, Yigal D, Johnson, Sylvia M, and Gusman, Michael I. Wed .
"Hydridosiloxanes as precursors to ceramic products". United States. https://www.osti.gov/servlets/purl/870979.
@article{osti_870979,
title = {Hydridosiloxanes as precursors to ceramic products},
author = {Blum, Yigal D and Johnson, Sylvia M and Gusman, Michael 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 = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}
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