NSUF 17-1033: Pore size distribution in U-Mo fuel irradiated to low burnup
Attaining fundamental understanding of fuel performance requires detailed characterization of irradiated fuels under variety of irradiation conditions. Such characterization was previously limited by instrumentation available for highly radioactive samples. Significant advancements in understanding of irradiated fuel performance during irradiation started to occur with implementation of stat-of-the-art equipment in nuclear fuels field. The main objective of this proposed research is to apply focused ion beam (FIB) nano-tomography and transmission electron microscopy (TEM) techniques to perform a detailed microstructural examination on the monolithic U-10wt%Mo fuel irradiated to low burnup. FIB nano-tomography will be used to attain better understanding of the porosity in irradiated U-Mo fuels and determining the total porosity in the fuel. 3D reconstruction of the acquired 2D images will allow us to discover if the porosity is interconnected, which could lead to breakaway swelling. It is imperative to establish the onset for interconnection of the porosity to better understand the end of life irradiation properties of the U-Mo fuel. The crystallography and fission gas bubble behavior observed in U-Mo fuel will be investigated in TEM. Since TEM has the disadvantage of only being able to study relatively small areas as compared to FIB nano-tomography, it will be used to validate the data.
Дополнительная информация
| Поле | Величина |
|---|---|
| Awarded Institution | University of Florida |
| Embargo End Date | 2026-02-27 |
| Facility Tech Lead | Alina Montrose, Mukesh Bachhav |
| NSUF Call | FY 2017 RTE 3rd Call |
| PI | Zheng Zhang |
| Project Member | Professor Assel Aitkaliyeva, Assistant Professor - University of Florida (https://orcid.org/0000-0003-1481-6804) |
| Project Member | Brandon Miller, Research Scientist - Idaho National Laboratory (https://orcid.org/0000-0002-2246-7133) |
| Project Member | Dennis Keiser, Distinguished Staff Scientist - Idaho National Laboratory |
| Project Member | Zheng Zhang, Ph.D. student - University of Florida (https://orcid.org/0000-0002-8771-1918) |
| Project Notes | Awarded on 09/20/2017 |
| Project Type | RTE |
| Publication | Recent observations from the microstructural characterization of irradiated U-Mo fuels using advanced techniques Dennis Keiser, Brandon Miller, Jian Gan, Lingfeng He, Daniel Jadernas, Mukesh Bachhav NUMAT 2018 2018-10-15 - 2018-10-18 |
| Publication | High-Resolution TEM Characterization of Neutron-Irradiated U-10Mo Fuel in the Low Temperature and Low Burnup Regime Cameron Howard Materials in Nuclear Energy Systems (MiNES 2023). None 2023-12-10 https://www.ans.org/pubs/proceedings/article-55235/ |
| RTE Number | 1033 |