Abstract
Silicon carbide composites are attractive for structural applications in fusion energy systems because of their low activation and afterheat properties, excellent high-temperature properties, corrosion resistance and low density. Another attractive property includes the potential to engineer their properties by location within a component or system to meet variable performance requirements. This can be accomplished by tailoring the fiber type, volume fraction and architecture by location within the component. Also β SiC exhibits very low swelling (< 0.2%) over the temperature range of 800 to 1000°C.These composites are relatively new materials with a limited data base; however, there is sufficient understanding of their performance to identify key issues in their application. These issues include: mechanical, chemical and radiation stability, nuclear transmutation, hermetic behavior, thermal conductivity, mechanical and thermal fatigue, thermal shock, joining and design methodology. Progress is being made...
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