NSUF 18-1428: Microstructural characterization of transmutation nitride fuels for fast reactors
Transmutation nitride fuels by incorporating 3 minor actinides (Am, Np, and Cm) into a fuel matrix, such as (U0.5,Pu0.25,Am0.15,Np0.10)N have been developed, irradiated and post-irradiation examined under DOE Advanced Fuels Campaign program to demonstrate the closure of the fuel cycle by destroying the transuranic elements separated from spent nuclear fuels. The fine microstructure of transmutation nitride fuels at SEM and TEM levels has yet to be characterized. In this work, we propose to mainly characterize irradiation induced defects, including dislocation loops and fission gas bubbles, fission products and phase stability in a (U0.5,Pu0.25,Am0.15,Np0.10)N fuel irradiated at fast spectrum Phénix reactor using state-of-art instruments including Focused Ion Beam (FIB) system equipped with Electron Backscatter Diffraction (EBSD), and Titan Themis 200 Transmission Electron Microscope (TEM) equipped with Super-X energy dispersive X-ray spectroscopy (EDS) system. The impurities introduced during processing will be identified. In addition, helium is generated during irradiation and post-irradiation storage of the Am-bearing fuels and the He bubbles will also be characterized using TEM.
מידע נוסף
| שדה | ערך |
|---|---|
| Awarded Institution | Idaho National Laboratory |
| Embargo End Date | 2021-01-08 |
| Facility Tech Lead | Alina Montrose |
| NSUF Call | FY 2018 RTE 2nd Call |
| PI | Lingfeng He |
| Project Member | Dr. Jason Harp, Group Leader - Oak Ridge National Laboratory (https://orcid.org/0000-0002-5345-8440) |
| Project Member | Dr. Lingfeng He, Associate Professor - North Carolina State University (https://orcid.org/0000-0003-2763-1462) |
| Project Notes | Awarded on 05/17/2018 |
| Project Type | RTE |
| RTE Number | 1428 |