Abstract

Silicon carbide composites are attractive for fusion applications beacuse of their low activation and afterheat properties coupled with excellent high-temperature properties. Their application will require material development and an expanded data base as well as evaluation for high-temperature stability, chemical compatibility with fusion relevant coolants, thermal conductivity, thermal fatigue and shock, hermetic properties, joining methodology and radiation stability. Preliminary data suggest that commercially available material has adequate performance for some requirements in its present form or that there are identifiable routes to improve the performance. This paper summarizes SiC/SiC behavior relative to some performance requirements and identifies areas where further research is needed.

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