| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Thermodynamic Assessment of Reciprocal Salt Systems Involving Cesium, Rubidium, and Iodine with LiF-NaF-KF and NaCl-KCl-MgCl2 for Molten Salt Reactor Applications |
| Author(s) |
Clara M. Dixon, Mina Aziziha, Juliano Schorne-Pinto, Jorge Paz Soldan Palma, Jack A Wilson, Amir Mofrad, Theodore Besmann |
| On-Site Speaker (Planned) |
Clara M. Dixon |
| Abstract Scope |
Developing accurate thermochemical models to predict the behavior of the volatile fission products cesium, rubidium and iodine in molten LiF-NaF-KF (FLiNaK) and MgCl2-NaCl-KCl under simulated accident conditions is integral to the development and licensing of molten salt reactors (MSRs). Full thermodynamic representation of complex reciprocal systems requires assessment of the constituent pseudo-binary and pseudo-ternary additive and reciprocal subsystems. The pseudo-binary systems were assessed using reported information and with as necessary original DSC measurements on the LiI-NaI, LiI-CsI, RbI-NaI and RbI-CsI systems to perform Computer CALculation of PHAse Diagrams (CALPHAD) analyses. The determined pseudo-binary system models were interpolated to obtain higher order additive and reciprocal subsystems to provide the basis for their optimization based on reported properties of the higher order systems, again supplemented with original DSC measurements on isopleths in the Li, Na, K, Cs | F, I and Na, K, Cs, Mg | Cl, I reciprocal systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Phase Transformations, Modeling and Simulation |