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The Influence of Heat Treatment upon Fiber Pull-Out in a Ceramic Composite

Published online by Cambridge University Press:  22 February 2011

M. D. Thouless ,
O. Sbaizero ,
E. Bischoff  and
E. Y. Luh
M. D. Thouless
Affiliation:
Materials Department, University of California, Santa Barbara, CA 93106
O. Sbaizero
Affiliation:
Materials Department, University of California, Santa Barbara, CA 93106
E. Bischoff
Affiliation:
Materials Department, University of California, Santa Barbara, CA 93106
E. Y. Luh
Affiliation:
Department of Materials Science and Mineral Engineering, University of California, Berkeley, CA 94720.
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Abstract

The toughness of ceramic-matrix composites is strongly influenced by fiber pull-out. The extent of the pull-out depends upon the properties of the fiber and the fiber/matrix interface. Samples of a SiC/LAS composite were subjected to different heat treatments in order to systematically vary these properties. The predicted distribution of the fiber pull-out lengths was calculated by combining a shear lag analysis with Weibull statistics for the fiber strengths. Comparison of the analysis with experiments and microstructural observations contribute to an understanding of the role of the fiber/matrix interface upon the mechanical properties.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 120: Symposium G – High-Temperature/High-Performance Composites , 1988 , 333
Copyright
Copyright © Materials Research Society 1988

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References

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