| About this Abstract |
| Meeting |
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Presentation Title |
New Microscopic Insights into the Fuel Cladding Interaction Layer of High Burnup Fuel |
| Author(s) |
Sarah C. Finkeldei, Karen Wright, Nedim Cinbiz, Boopathy Kombaiah, Fabiola Cappia |
| On-Site Speaker (Planned) |
Sarah C. Finkeldei |
| Abstract Scope |
The fuel-cladding interaction layer plays a vital role in nuclear fuel rod performance during off-normal, in particular, transient conditions. Thus, understanding the microstructural features and local chemistry will help to better predict the mesoscale behavior of high burn-up fuels. X-ray maps were collected with an electron probe microanalyzer (EPMA) at the cross section of a high burnup pellet with detailed characterization of the pellet cladding interaction (PCI) layer, revealing the distribution and location of fission products, gases and epsilon particles. EPMA data are complemented with TEM measurements, including orientation mapping via precession electron diffraction technique to gain insights about the chemical and microstructural nature of the PCI and the high burnup fuel which will enable better evaluation and analysis of upcoming TREAT experiments. |
| Proceedings Inclusion? |
Undecided |