About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
FLiBe Thermodynamic and Physical Properties Validation |
Author(s) |
Nathanael Gardner, Raluca Scarlat, Sven Vogel, Haley Williams, Boris Khaykovich, Sean Fayfar |
On-Site Speaker (Planned) |
Nathanael Gardner |
Abstract Scope |
FLiBe, a molten salt composed of eutectic mix of lithium fluoride and beryllium fluoride has the potential to be used as a fuel solvent or coolant in advanced nuclear reactors such as molten salt reactors. However, fission and corrosion products can alter the structure and properties of the salt. Thus using Ab-Initio-Molecular-Dynamics simulations and validating simulation results using neutron and x-ray diffraction, it is possible to observe how the structure of the salt changes as a function of temperature, extract the pair distribution function of the melt, and identify melt species. Neutron diffraction and thermal expansion data gathered on various FLiBe molten salt samples including FLiBe+LiD, FLiBe+Be, and FLiBe gathered from 20℃ to 700℃ will be shown. Significant anisotropy of the thermal expansion along the two crystallographic axes in the hexagonal unit cell was observed and compared for the different compositions to study the influence of these species. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Modeling and Simulation, Sustainability |