| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Characterization and Modeling of Nuclear Fuels: Microstructure, Thermo-physical Properties
|
| Presentation Title |
Evolution of the Internal Layer Structure in Irradiated TRISO Fuel |
| Author(s) |
Tyler J. Gerczak, John Hunn, Grant Helmreich, Rachel Seibert, John Stempien, Darren Skitt, Brian Eckhart, Andrew Kercher |
| On-Site Speaker (Planned) |
Tyler J. Gerczak |
| Abstract Scope |
Tristructural-isotropic (TRISO) coated particle fuel is a robust fuel form originally developed for high temperature gas-cooled reactors (HTGRs). Each layer in the TRISO particle architecture is designed to provide specific functionality and irradiation response. The evolution of the TRISO particle layers after irradiation were observed through multiscale post-irradiation examination (PIE) (e.g., coupled microcomputed X-ray tomography with electron microscopy). Radiation-induced changes in TRISO fuel from the second Advanced Gas reactor Fuel Qualification and Development program irradiation experiment (AGR-2) will be presented. The presentation will focus on the impact of fast fluence, irradiation temperature, and post-irradiation high-temperature exposures on the change in buffer structure (e.g., densification and fracture) and its subsequent influence on fission product transport and local SiC layer corrosion. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, |