About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Microstructural, Mechanical, and Chemical Behavior of Solid Nuclear Fuel and Fuel-Cladding Interface II
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Presentation Title |
Development of Elemental Technologies for Application of SiC Fuel Cladding to BWR |
Author(s) |
Ryo Ishibashi, Masana Sasaki, Masatoshi Shibata, Kenichi Yasuda, Yoshiyuki Nemoto, Tatsuya Hinoki |
On-Site Speaker (Planned) |
Ryo Ishibashi |
Abstract Scope |
SiC-based materials are considered to provide outstanding passive safety features in severe accident (SA) scenarios. SiC/SiC composites have been developed for fuel structure applications such as cladding tubes. We have focused on development of fabrication and evaluation technologies on corrosion resistant coating and end-plug joining to resolve technical issues for application to BWRs. The corrosion resistant coating was intended to prevent dissolution of silica from SiC to coolant during BWR normal operations. Among the examined metallic coatings on SiC, Ti-coating showed good corrosion resistance in simulated BWR environment. The end-plug joint should provide sufficient strength to withstand SA conditions. The joint specimens that consisted of a mechanical fastening and brazing were designed and fabricated. The joint specimens showed enough tensile strength around the temperature at which the end-plug joint was estimated to reach during SA. Part of this study includes results of the programs supported by the METI of Japan. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Surface Modification and Coatings, Joining |