| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Modeling Radiolysis Effects in FLiNaK and FLiBe Molten Fluoride Salt |
| Author(s) |
Adria Peterkin, Herve Caralp, Mike Short, Weiyue Zhou |
| On-Site Speaker (Planned) |
Adria Peterkin |
| Abstract Scope |
Molten fluoride salts, such as FLiNaK and FLiBe, are used as fuel or coolant and breeding blankets in nuclear fission and fusion reactors. In this study, we show that radiation can impact the chemical properties of these salts, by breaking complex fluorine structures. Measuring fluoroacidity, the amount of free fluoride ions available in the salt, reveals these impacts. Previous experiments have shown that fluoroacidity affects corrosion rates of metals in contact with these salts. However, the mechanistic details are not fully understood. Here we use molecular dynamics to emulate radiolysis in FLiNaK and FLiBe. We analyze radial distribution functions to measure the change in fluoroacidity due to irradiation. The results for both FLiNaK and FLiBe should indicate a larger increase in fluorobasicity for FLiBe, compared to FLiNaK. We anticipate this analysis will serve as a foundational assessment to understand the effect of radiolysis in both FLiNaK and FLiBe corrosion. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Nuclear Materials, Modeling and Simulation |