About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments IV
|
| Presentation Title |
Irradiation Induced Twin-Fading in Epsilon Phase Zirconium Hydride |
| Author(s) |
Darren Parkison, Peter Hosemann, Tarik Saleh, Caitlin Kohnert |
| On-Site Speaker (Planned) |
Darren Parkison |
| Abstract Scope |
Transition metal hydrides are being studied as moderators for advanced nuclear concepts where size is a critical factor. Zirconium hydrides (ZrHx), in particular, are of great interest due to their low thermal neutron cross section and high hydrogen content. However, hydrogen release and subsequent phase transformations could be problematic in nuclear systems. This release can lead to changes in the moderating efficiency as well as lead to mechanical degradation of the material. The high hydrogen phase, epsilon zirconium hydride (ε -ZrHx ), has a completely nano-twinned “Herringbone” microstructure. Following irradiation of the epsilon phase with 5MeV Zr ions, a phenomenon similar to “twin-fading” previously seen in REBCo superconductors was observed. Results will be presented on the further analysis of this microstructural evolution caused by irradiation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Nuclear Materials, |