About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Round Robin on the Measurement of the Composition, Oxygen Content, Density, Melting Point, and Thermal Conductivity of NaCl-KCl and FLiNaK Salts |
| Author(s) |
Troy Munro, Randall Chiu, Raluca Scarlat |
| On-Site Speaker (Planned) |
Troy Munro |
| Abstract Scope |
As molten salts grow in utility for nuclear reactor usage as well as a variety of applications, it was deemed important that there be a better understanding of the uncertainty and comparative practices in the measurement of composition, contaminant oxygen content, density, melting point, and thermal conductivity. As a result, a round robin on the measurements of these properties with 21 laboratory participants from five countries was undertaken for two representative salt compositions: equimolar NaCl-KCl and FLiNaK. The results were compared based on techniques, contrasted with previously provided values, and used to understand uncertainties in reported molten salt properties, as well as suggesting best practices for a more standardized measurement process. Measurement techniques included: (composition) inductively coupled plasma – mass spectroscopy and optical emission spectroscopy, (oxygen content) inert gas fusion, (density) hydrostatic method, (melting point) differential scanning calorimetry, (thermal conductivity) laser flash analysis, needle probe, and modulated photothermal radiometry. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Energy Conversion and Storage |