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Silicon Oxycarbide Glasses from Sol-Gel Precursors

Published online by Cambridge University Press:  25 February 2011

F. Babonneau ,
G. D. Soraru ,
G. D'Andrea ,
S. Dire  and
L. Bois
F. Babonneau
Affiliation:
Chimie de la Matière Condensée, Université P. et M. Curie, 4 place Jussieu, 75252 Paris, France.
G. D. Soraru
Affiliation:
Dipartimento di Ingegneria dei Materiali, Università di Trento, 38050, Mesiano-Trento, Italy.
G. D'Andrea
Affiliation:
Dipartimento di Ingegneria dei Materiali, Università di Trento, 38050, Mesiano-Trento, Italy.
S. Dire
Affiliation:
Dipartimento di Ingegneria dei Materiali, Università di Trento, 38050, Mesiano-Trento, Italy.
L. Bois
Affiliation:
Chimie de la Matière Condensée, Université P. et M. Curie, 4 place Jussieu, 75252 Paris, France.
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Abstract

Silicon oxycarbide glasses have been prepared from sol-gel precursors containing not only Si-CH3, but also Si-H bonds. Three systems have been chosen containing various Si units but the same C/Si ratio. Their pyrolysis process has been mainly followed by 29Si MAS-NMR and the composition of the final glass extracted. This study shows that a suitable choice of Si-CH3 and Si-H functionnalized silicon alkoxides can lead to a strong decrease in the free carbon content and to an almost pure silicon oxycarbide phase.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 271: Symposium N – Better Ceramics Through Chemistry V , 1992 , 789
Copyright
Copyright © Materials Research Society 1992

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References

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