Strengths of Ceramic Fibers at Elevated Temperatures

Tensile strengths were measured and Young's moduli were estimated for two SiC‐based and three oxide ceramic fibers for temperatures from 25° to 1400°C. The SiC‐based fibers were stronger but less stiff than the oxide fibers at room temperature and retained more of both strength and stiffness to...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1989-02, Vol.72 (2), p.284-288
Main Authors: Pysher, Douglas J., Goretta, Kenneth C., Hodder Jr, Robert S., Tressler, Richard E.
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Chemical industry and chemicals
Exact sciences and technology
fibers
mechanical properties
Miscellaneous
oxidation
Refractory products
silicon carbide
strength
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Summary:Tensile strengths were measured and Young's moduli were estimated for two SiC‐based and three oxide ceramic fibers for temperatures from 25° to 1400°C. The SiC‐based fibers were stronger but less stiff than the oxide fibers at room temperature and retained more of both strength and stiffness to high temperatures. High‐temperature strengths of the SiC‐based fibers were limited by internal void formation and oxidation; those of the oxide fibers were limited by softening of an intergranular glassy phase.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1989.tb06115.x