| About this Abstract |
| Meeting |
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Presentation Title |
Three-dimensional Characterization of Microstructural Features in Oxide Fuels |
| Author(s) |
Casey S. McKinney, Assel Aitkaliyeva |
| On-Site Speaker (Planned) |
Casey S. McKinney |
| Abstract Scope |
Nuclear fuels undergo various microstructural and chemical changes during their lifetime in the reactor. Temperature gradients cause grain restructuring while fission disperses new phases and precipitates throughout the fuel microstructure. Understanding how these features evolve over the lifetime of the fuel is vital as each one has the potential to compromise the safety of the reactor. In this work, we employ focused ion beam (FIB) tomography to study the microstructural evolution. With the incorporation of electron backscatter diffraction (EBSD) and energy dispersive x-ray spectroscopy (EDS), we can study the grain and fission product evolution in oxide fuels. The reconstructions obtained from this study will be used to assess solid and gaseous fission product behavior and their relationship to the local grain structure. |
| Proceedings Inclusion? |
Undecided |