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Effect of High Temperature Annealing on the Microstructure of SCS-6 SiC Fibers

Published online by Cambridge University Press:  15 February 2011

X. J. Ning
Affiliation:
Department of Materials Science and Engineering, Case Western Reserve University Cleveland, OH 44106
P. Pirouz
Affiliation:
Department of Materials Science and Engineering, Case Western Reserve University Cleveland, OH 44106
R. T. Bhatt
Affiliation:
NASA Lewis Research Center, Cleveland, OH 44135
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Abstract

The effect of annealing the SCS-6* SiC fiber for one hour at 2000°C in an argon atmosphere is reported. The SiC grains in the fiber coarsen appreciably and the intergranular carbon films segregate to the grain junctions. It would appear that grain growth in the outer part of the fiber is primarily responsible for the loss in fiber strength and improvement in fiber creep resistance.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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References

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