NSUF 22-4384: Phase reversion analyses in irradiated U-10Zr fuel via in-situ experiments.
This project aims to understand phase transition via in-situ analyses by the heating of irradiated specimens with primary focus on understanding the kinetics of γ phase formation and decomposition via reverse analyses. While the stability of gamma U in binary and ternary systems has been largely investigated in as-fabricated conditions, limited data exist on phase transitions in irradiated samples. This project requires access to NSUF facilities at Material Fuel Complex (MFC) in the Irradiated Material Characterization Laboratory (IMCL). The project request access to the Focus Ion Beam (FIB) instrument for the preparation of irradiated samples for following in-situ Transmission Electron Microscopy (TEM) experiments on phase transitions in irradiated metallic fuel. 4 days are forecast for sample preparation, followed by 6 day of TEM analyses. The experiments are planned for July-August 2022. Gaining insight in γ formation, stability, and the nature of its decomposition during irradiation is also needed to better understand predicted phase diagrams and to discern the possible contribution of irradiation to phase transition. Such information is finally relevant to improve modelling and simulation tools and to validate them through experimental data.
Additional Info
| Field | Value |
|---|---|
| Abstract | This project aims to understand phase transition via in-situ analyses by the heating of irradiated specimens with primary focus on understanding the kinetics of γ phase formation and decomposition via reverse analyses. While the stability of gamma U in binary and ternary systems has been largely investigated in as-fabricated conditions, limited data exist on phase transitions in irradiated samples. This project requires access to NSUF facilities at Material Fuel Complex (MFC) in the Irradiated Material Characterization Laboratory (IMCL). The project request access to the Focus Ion Beam (FIB) instrument for the preparation of irradiated samples for following in-situ Transmission Electron Microscopy (TEM) experiments on phase transitions in irradiated metallic fuel. 4 days are forecast for sample preparation, followed by 6 day of TEM analyses. The experiments are planned for July-August 2022. Gaining insight in γ formation, stability, and the nature of its decomposition during irradiation is also needed to better understand predicted phase diagrams and to discern the possible contribution of irradiation to phase transition. Such information is finally relevant to improve modelling and simulation tools and to validate them through experimental data. |
| Award Announced Date | 2022-06-14T07:18:09.92 |
| Awarded Institution | None |
| Facility | None |
| Facility Tech Lead | Alina Zackrone |
| Irradiation Facility | None |
| PI | Fidelma Di Lemma |
| PI Email | [email protected] |
| Project Type | RTE |
| RTE Number | 4384 |