NSUF 14-499: Atom probe tomography of intermetallic phases formed in Pu-based diffusion couples
Plutonium-uranium-zirconium (Pu-U-Zr) and plutonium-uranium-molybdenum (Pu-U-Mo) alloys have attracted attention for application in advanced fast reactors. Compatibility of the fuel with cladding is one of the most important factors that has to be considered prior to an alloy’s implementation in nuclear reactor environment. Interdiffusion between fuel and cladding is imperative for understanding of the useful lifetime of nuclear reactor components and fuels. The project aims to characterize complex phases formed upon heat treatment of diffusion couples constructed from Pu-U-Zr and Pu-U-Mo alloys and Fe-12Cr cladding. Detailed chemical and structural characterization of interdiffusion between fuel and cladding the atomic scale is of profound consequence for evaluation of nuclear fuels and materials behavior. This proposal requests access to focused ion beam (FIB) and localized electrode atom probe (LEAP) instruments for thorough characterization of formed intermetallic phases. The proposed work will lead to enhancement of fundamental understanding of fuel performance and fuel-clad chemical interactions.
추가 정보
| 필드 | 값 |
|---|---|
| Abstract | Plutonium-uranium-zirconium (Pu-U-Zr) and plutonium-uranium-molybdenum (Pu-U-Mo) alloys have attracted attention for application in advanced fast reactors. Compatibility of the fuel with cladding is one of the most important factors that has to be considered prior to an alloy’s implementation in nuclear reactor environment. Interdiffusion between fuel and cladding is imperative for understanding of the useful lifetime of nuclear reactor components and fuels. The project aims to characterize complex phases formed upon heat treatment of diffusion couples constructed from Pu-U-Zr and Pu-U-Mo alloys and Fe-12Cr cladding. Detailed chemical and structural characterization of interdiffusion between fuel and cladding the atomic scale is of profound consequence for evaluation of nuclear fuels and materials behavior. This proposal requests access to focused ion beam (FIB) and localized electrode atom probe (LEAP) instruments for thorough characterization of formed intermetallic phases. The proposed work will lead to enhancement of fundamental understanding of fuel performance and fuel-clad chemical interactions. |
| Award Announced Date | 2014-08-11T00:00:00 |
| Awarded Institution | None |
| Facility | None |
| Facility Tech Lead | Yaqiao Wu |
| Irradiation Facility | None |
| PI | Assel Aitkaliyeva |
| PI Email | [email protected] |
| Project Type | RTE |
| RTE Number | 499 |