About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Radiation Effects in Metals and Ceramics
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Presentation Title |
H-34: Meso-, Micro-, and Nano-scale Characterization of Neutron Irradiated U-10Zr Metallic Fuels via Synchrotron µ-CT and Electron Microscopy |
Author(s) |
Jonova Thomas, Alejandro Figueroa, Lingfeng He, Xiang Liu, Daniel Murray, Peter Kenesei, Jonathan Almer, Jason Harp, Maria Okuniewski |
On-Site Speaker (Planned) |
Jonova Thomas |
Abstract Scope |
Metallic fuels under neutron irradiation in reactors undergo severe damage and microstructural alterations. Some of these alterations include fuel constituent re-distribution, phase transformations, and formation of cavities and fission products that lead to swelling. The correlation between mesoscale characterization of neutron irradiated U-10wt%Zr (U-10Zr) fuel regions via high energy synchrotron X-rays and micro-/nano-scale characterisation via electron microscopy can be beneficial for understanding various microstructural alterations. Different localities within a U-10Zr fuel slug that has a local burnup of 5.7 at% are analyzed to provide a detailed assessment of various cavity morphologies, fuel cladding chemical interaction zones, crystal structure of phases, and local chemical compositions. Finally, an initial assessment of in-situ nano-mechanical testing at various localities of the neutron irradiated U-10Zr and HT9 (fuel/cladding) will also be presented. This systematic methodology of different length scale assessment of irradiated fuels provides a new perspective for the analysis of neutron irradiated fuels. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |