|About this Abstract
||MS&T22: Materials Science & Technology
||Thermodynamics of Materials in Extreme Environments
||Addressing the Thermodynamic Behavior of Volatile Fission Products in Fluoride Salt-Fueled Molten Salt Reactors: Behavior of Cesium and Iodine
||Clara M. Dixon, Mina Aziziha, Juliano Schorne-Pinto, Jacob A Yingling, Amir M Mofrad, Theodore M Besmann
|On-Site Speaker (Planned)
||Clara M. Dixon
Developing accurate thermochemical models to predict the behavior of the volatile fission products cesium and iodine under simulated accident conditions is integral to the development and licensing of any MSR. We are thus developing thermochemical models and values for cesium and iodine in the molten fuel salts which is key to simulating their species formation and transport in a potential MSR accident. We analyzed the pseudo-binary systems of cesium and iodine with LiF-NaF-KF (FLiNaK) through data mining and DSC thermal analysis. We used the Computer CALculation of PHAse Diagrams (CALPHAD) methodology to model the various pseudo-binary systems and interpolated the pseudo-binary systems to generate pseudo-ternary models of cesium with the fluorides of Li-Na-K, and similarly create the first pseudo-quaternary model for cesium with FLiNaK.