| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Seaborg Institutes: Emerging Topics in Actinide Sciences
|
| Presentation Title |
Transmission Electron Microscopy Characterization of the Chemical Interaction between Minor Actinide Bearing Metallic Fuel and Steel Claddings |
| Author(s) |
Tiankai Yao, Di Chen, Daniele Salvato, Luca Capriotti |
| On-Site Speaker (Planned) |
Tiankai Yao |
| Abstract Scope |
Minor actinide (MA) contributes significantly to the long-term radiotoxicity of spent nuclear fuel (SNF). Separation of MA from spent nuclear fuel and incorporation into metallic fuels is a potential method to release the radiotoxicity burden on future geological repository of SNF. However, the impact of MA on the metallic fuel performance needs to be investigated. In this talk, we will present the recent characterization advances at Idaho National Laboratory to support the MA transmutation objective. Specifically, the talk will focus on the transmission electron microscopy micrograph data collected on the sample extracted from fuel cladding chemical interaction (FCCI) region of two Americium (Am) and Neptunium (Np) bearing U-Pu-Zr fuels irradiated in fast reactor conditions to > 5% peak burnup at ~550 ℃. The results shows Am reacted with cladding constituents and from 1-2 micron thick layer with no significant impact on fuel performance for the investigated irradiation conditions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Other |