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The pyrolysis process of a polytitanocarbosilane into SiC/TiC ceramics: An XPS study

Published online by Cambridge University Press:  31 January 2011

G. D. Sorarù
Affiliation:
Dipartimento di Ingegneria, Università di Trento, 38050 Mesiano-Trento, Italy
A. Glisenti
Affiliation:
Dipartimento di Chimica Inorganica, Metallorganica ed Analitica, Università di Padova, via Loredan 4, 35131 Padova, Italy
G. Granozzi
Affiliation:
Dipartimento di Chimica Inorganica, Metallorganica ed Analitica, Università di Padova, via Loredan 4, 35131 Padova, Italy
F. Babonneau
Affiliation:
Chimie de la Matière Condensée, Université Paris 6, Tour 54, 4 place Jussieu, 75005 Paris, France
J. D. Mackenzie
Affiliation:
UCLA, Department of Materials Science and Engineering, Boelter Hall 6531, Los Angles, California 90024
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Abstract

The pyrolysis process of polytitanocarbosilane, precursor for SiC/TiC ceramics, has been followed step by step using x-ray photoclectron spectroscopy. This study shows that Ti–O bonds, present in the precursor, are stable up to 700 °C. Above this temperature, Ti–C bonds, precursor for TiC network, start to form. From a detailed analysis of Ti(2p) and Si(2p) peaks, the formation of intermediate species such as SiCxOy and TiCxOy has been detected.

Type
Articles
Copyright
Copyright © Materials Research Society 1990

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