About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Interrelated Extremes in Materials Degradation for Fission and Fusion Environments
|
| Presentation Title |
Evaluation of SiC-Based Composite Tubes Under Multi-Physics Environments for Accident-Tolerant Cladding Development |
| Author(s) |
Takaaki Koyanagi, Christian Petrie, J. David Arregui-Mena, Yutai Katoh |
| On-Site Speaker (Planned) |
Takaaki Koyanagi |
| Abstract Scope |
The development of SiC-fiber reinforced SiC matrix composite material for accident-tolerant fuel cladding in light water reactors requires an assessment of the material under both normal operating and off-normal conditions. The SiC-based cladding is subjected to multi-physics environments in such application scenarios. This paper presents approaches for conducting targeted experiments involving the synergistic environmental effects of (1) neutron irradiation and temperature gradient, (2) neutron irradiation and neutron flux gradient, and (3) steam oxidation and mechanical loading. These experiments were designed using high-fidelity thermo-mechanical models generated from separate effect tests. Feedback from the multi-physics environment tests was used to validate and improve the prediction models and tools regarding the responses of SiC composite materials to cladding application conditions. This exercise aids in the development of an integrated modeling tool to assess the failure probability of the fuel cladding. |
| Proceedings Inclusion? |
Planned: |