| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments II
|
| Presentation Title |
Grain Growth of Nanograined Fe Oxides under Thermal Annealing and Ion Irradiation Using In-situ TEM |
| Author(s) |
Dmitrii Kretov, Benjamin Derby, Tiffany Kaspar, Daniel Schreiber, Djamel Kaoumi |
| On-Site Speaker (Planned) |
Dmitrii Kretov |
| Abstract Scope |
Unlike for nanocrystalline metals, grain growth in nanocrystalline oxides has not been studied extensively, especially under irradiation. Particularly there do not appear to be studies on grain growth of oxides which typically form on structural alloys such as steels in nuclear reactors. In this study, Fe oxides such as magnetite (Fe3O4) and hematite (α-Fe2O3) were processed as thin films and in situ Transmission Electron Microscope (TEM) was used to follow the grain growth under both thermal and ion irradiation conditions (at temperatures from 50 K to 773 K using 1 MeV Kr ions to 10 dpa) to determine and understand the kinetics of grain growth in these oxides.
Particularly the grain growth curves obtained under irradiation were compared to a thermal spike model developed for metals in the literature. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Characterization, Nuclear Materials |