| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Meeting Materials Challenges for the Future of Fusion Energy
|
| Presentation Title |
Microstructural Changes in Ion and Neutron Irradiated REBCO-Based Magnet Materials for Fusion |
| Author(s) |
Christopher Richard Reis, Kooknoh Yoon, Mehdi Balooch, Tengming Shen, Soren Prestemon, Masami Iio, Toru Ogitsu, Lee Bernstein, Peter Hosemann |
| On-Site Speaker (Planned) |
Christopher Richard Reis |
| Abstract Scope |
Nuclear fusion has made staggering technological advancements in recent years, with the implementation of Rare Earth Barium Copper Oxide (REBCO) high-temperature superconductors (HTS) in magnetic confinement architectures of central focus since magnetic fields achievable from this recent technology predict net energy gain reactors in highly reduced form factors. While great for power plant economics, the reduced size offers significantly less room for shielding these radiation-sensitive materials. This investigation focused on the radiation-induced microstructural changes to these magnet materials to better elucidate the nature of the concurrent superconductivity changes. Samples were irradiated with alpha particles, fission spectrum neutrons, and fusion-like spectrum neutrons. Microhardness testing and SEM were performed on the major layers that constitute these coated conductors, and FIB-assisted lift-outs were done to acquire TEM lamellae for deeper analysis. Preliminary TEM on ion-implanted REBCO showed tremendous nonlinear swell rates with highly distinct morphology and novel recrystallization of the superconducting layer. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Magnetic Materials, Other |