| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ceramic Materials for Nuclear Energy Research and Applications
|
| Presentation Title |
Relating Microstructural Evolution and Stoichiometry to Tritium Release from Ternary Lithium Ceramics |
| Author(s) |
David James Senor, Andy Casella, Weilin Jiang |
| On-Site Speaker (Planned) |
David James Senor |
| Abstract Scope |
A comprehensive experimental and computational research program is being performed to
improve fundamental scientific understanding of LiAlO2 and LiAl5O8 irradiation performance
for tritium production in light water reactors, where the goal is to retain as much tritium as
possible. A similar effort is being pursued to provide fundamental understanding of Li4SiO4 and
Li2SiO3 irradiation performance for fusion solid breeder applications, where the desire is to
release as much as the tritium as quickly as possible. The presentation will provide a summary
of results from a variety of studies that are beginning to provide insight into the relationship
between microstructural evolution, stoichiometry and tritium retention/release. Methods for
building this understanding include ion and neutron irradiation, followed by post-irradiation
microstructural characterization using electron microscopy, atomic force microscopy, atom
probe tomography, and secondary ion mass spectrometry. Atomistic modeling using density
functional theory and molecular dynamics provides insight to help interpret the experimental
results. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Nuclear Materials, Characterization |