About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Corrosion Behavior in Advanced Nuclear Reactor Environments III
|
| Presentation Title |
Best Practices for Measurement of Impurities in FLiNaK and FLiBe |
| Author(s) |
Nayoung Kim, Weiyue Zhou, Kevin Woller, Michael Short, Alexander A. Khechfe, Guiqiu Zheng, Caroline Sorensen |
| On-Site Speaker (Planned) |
Nayoung Kim |
| Abstract Scope |
Fluoride molten salts, especially FLiNaK and FLiBe, are promising fuel and coolant materials in the nuclear industry for their favorable thermophysical and neutronic properties. However, metallic and oxygen impurities present in these salts can induce corrosion of structural materials. Although ICP-MS and combustion analysis are commonly employed to quantify these impurities, openly published, standardized procedures do not yet exist, hindering direct comparison of different data. This study investigates how variations in sample preparation – specifically sampling method, particle size, acid mixture, and digestion technique – affect impurity measurements in FLiNaK and FLiBe. Key impurity elements (Fe, Cr, Ni) were measured, and known quantities of dopants were used to validate the accuracy of the procedure. Additionally, modifications were made to ensure the safe handling of FLiBe. The methodology suggested provides a foundation for standardizing impurity analysis in molten salts, enabling more consistent and reliable impurity-driven corrosion research in salt systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, High-Temperature Materials, Nuclear Materials |