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Processing of SiC-Based Fibres from Polycarbosilane

Published online by Cambridge University Press:  25 February 2011

Vasilios Kalyvas ,
J. C. Ko ,
G. C. East ,
J. E. Mcintyre ,
B. Rand  and
F. L. Riley
Vasilios Kalyvas
Affiliation:
Department of Textile Industries, The University of Leeds, Leeds LS2 9JT, United Kingdom.
J. C. Ko
Affiliation:
School of Materials, The University of Leeds, Leeds LS2 9JT, United Kingdom.
G. C. East
Affiliation:
Department of Textile Industries, The University of Leeds, Leeds LS2 9JT, United Kingdom.
J. E. Mcintyre
Affiliation:
Department of Textile Industries, The University of Leeds, Leeds LS2 9JT, United Kingdom.
B. Rand
Affiliation:
School of Materials, The University of Leeds, Leeds LS2 9JT, United Kingdom.
F. L. Riley
Affiliation:
School of Materials, The University of Leeds, Leeds LS2 9JT, United Kingdom.
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Abstract

A commercial polycarbosilane, thermolysis product of polysilastyrene, was spun into fibres. The self-curing character of the polymer permitted both oxidative and thermal curing of the precursor fibres. Pyrolysis of the latter produced ceramic fibres in high yields, which were fully characterised. Optimum tensile strength was attained after heat treatment at 1100°C. Oxidative reactions and crystallisation caused strength degradation above this temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 271: Symposium N – Better Ceramics Through Chemistry V , 1992 , 755
Copyright
Copyright © Materials Research Society 1992

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References

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