About this Abstract |
Meeting |
Materials in Nuclear Energy Systems (MiNES) 2021
|
Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2021
|
Presentation Title |
Electron Probe Microanalysis of Fuel from EBR-II Experiment X441A: Effects of Varying U:Pu:Zr Elemental Ratios |
Author(s) |
Karen Wright, Thaddeus Rahn, Luca Capriotti, Assel Aitkaliyeva |
On-Site Speaker (Planned) |
Assel Aitkaliyeva |
Abstract Scope |
Three samples from the EBR-II X441A experiment were selected for electron probe microanalysis (EPMA) to determine how varying U:Pu:Zr ratios affects constituent redistribution and fuel cladding chemical interaction (FCCI), and to provide a comprehensive, modern quantitative analysis for model development. The Na-bonded, D9-cladded, irradiated metallic fuel samples experienced burnup ranging from ~9-11.5% fissions per initial metal heavy atom and were all cut from the x/L = 0.65 section of the fuel rod. Samples A814 (U-19Pu-14Zr) and A812 (U-19Pu-10Zr) show similar radial elemental redistribution profiles; however, in the rod's center, A814's U concentration is about 20% lower and its Zr concentration approximately 20% higher than observed in A812. There is no significant Pu profile difference. Sample A814 shows non-uniform FCCI around the fuel periphery, with fuel and cladding constituents migrating further and at larger concentrations on one side compared to the opposite side. Results from all three samples will be presented. |
Proceedings Inclusion? |
Undecided |