| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Meeting Materials Challenges for the Future of Fusion Energy
|
| Presentation Title |
Toward Understanding of the Response of SiC to Fusion Neutron Irradiation |
| Author(s) |
Takaaki Koyanagi, Weicheng Zhong, Benjamin Lamm, Yutai Katoh |
| On-Site Speaker (Planned) |
Takaaki Koyanagi |
| Abstract Scope |
Silicon carbide (SiC) shows potential for fusion structural applications because of its ability to operate at high temperatures and with a range of coolants, opening up the way for high-energy conversion efficiency. A current technology challenge is that the fusion operating environment necessitates demanding performance requirements for resistance to high-energy, fusion neutron irradiation. To address the challenge, the series of experimental studies focused on the fusion-specific irradiation damage processes in SiC, including high-dose neutron irradiation damage, the interaction of hydrogen isotopes with irradiated SiC materials, and the effects of doping of metallic transmutation elements (e.g., Mg) on the bulk thermo-physical properties. The Raman spectroscopy was systematically applied to the test specimens to quantify lattice disordering and homonuclear bond formations. The correlation between the Raman spectrum and material behavior was used to discuss the material degradation processes under the fusion reactor relevant environments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Ceramics, Nuclear Materials |