| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
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| Symposium
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Methods, Techniques, and Materials Discovery of Irradiation Effect Using In-situ Microscopy
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| Presentation Title |
Radiation Tolerance of Amorphous Alumina Cladding Coatings for Heavy Liquid Metal Cooled Fast Reactors: Temperature and Dose Effect. |
| Author(s) |
Davide Loiacono, Mattia Cabrioli , Wei Ying Chen, Meimei Li, Fabio Di Fonzo |
| On-Site Speaker (Planned) |
Davide Loiacono |
| Abstract Scope |
Considering the requirements for the materials development for Generation-IV nuclear reactors, ceramics represent an up-and-coming class of materials due to their high-temperature strength and excellent corrosion resistance.
In this respect, we studied an amorphous Al2O3 coating produced by Pulsed Laser Deposition.
As a surrogate for neutron irradiation, heavy-ions have been used in in-situ tests performed at temperatures from 400 to 800°C.
The range of temperatures studied allowed us to prove how the material does not crystallize below a threshold temperature (400 °C) even at a remarkably high radiation dose level (~30 DPA), preserving its amorphous and void-free structure. At higher temperatures, radiation-induced the crystallization even below 600°C (Al2O3 crystallization temperature).
Crystallization activation energy, grain dimensions distribution, phase evolution, and the correlation between temperature and radiation effect were extrapolated. This study lays the foundation for the rational use of ceramic coatings as a protective barrier. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Nuclear Materials, Nanotechnology |