|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advanced Characterization and Modeling of Nuclear Fuels: Microstructure, Thermo-physical Properties
||High-throughput Viscosity Measurements of Molten Salts for Molten Salt Reactors
||Alexander Levy, Haoxan Yan, Federico Coppo, Uday Pal, Karl Ludwig, Adam Powell
|On-Site Speaker (Planned)
There is considerable variability in the reported physical properties of molten salts used in nuclear reactors. These properties are important for the design of the reactors and in understanding the structure of the salts. Existing methods to measure these properties are expensive and time consuming. A high throughput method to measure one of these properties, viscosity, as a function of temperature will be presented. The method utilizes a glove box compatible high temperature furnace environment. The device is essentially a falling ball viscometer. The sensors are a pair of titanium electromagnetic coils acting as metal detectors to sense a metallic ball falling at terminal velocity through the molten salt. Viscosity is calculated with the measured terminal velocity using Stokes Law and accounting for wall effects. Two candidate salts, FLiNaK and NaF-ZrF4, were used for the viscosity measurements. The system will later be adapted for high-throughput measurement of other properties.
||Nuclear Materials, Mechanical Properties, High-Temperature Materials