| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Controlling Tritium Speciation in Molten Salts: Insights from the Liquid Immersion Blanket Robust Accountancy (LIBRA) Experiment |
| Author(s) |
Nikola Goles, Weiyue Zhou, Remi Delaporte-Mathurin, Kevin Woller |
| On-Site Speaker (Planned) |
Nikola Goles |
| Abstract Scope |
Tritium bred by the interaction of neutrons with lithium in molten salts is released in various chemical forms, depending on the environment. The transport and permeation characteristics vary among these species, and their presence in the melt affects its redox state and corrosivity. Understanding the factors that influence the chemical speciation of tritium in molten salts is crucial for future fusion devices utilizing the Liquid Immersion Blanket (LIB) concept. This knowledge enables robust tritium accountancy, management of salt-wetted material corrosion, and reduction of radiological hazards. Results from the LIBRA experiments, examining tritium breeding on molten ClLiF (LiF-LiCl eutectic) and FLiBe, demonstrate the ability to control speciation by adding small amounts (~5 wt%) of impurities with different redox properties from the base salt, such as EuF3. Additionally, the influence of the gas composition in contact with the melt is studied to broaden the understanding of key speciation mechanisms. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, |