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Meeting MS&T22: Materials Science & Technology
Symposium Thermodynamics of Materials in Extreme Environments
Presentation Title Thermophysical Properties of Key Binary Salt Systems using High-Sensitivity Twin Calvet Drop Calorimetry for Next Generation Molten Salt Reactors
Author(s) Kyle Makovsky, Vitaliy Goncharov, Jordan Barr, Xiaofeng Guo, Scott Beckman, Richard Clark, Bruce McNamara, Charmayne Lonergan, Jason Lonergan
On-Site Speaker (Planned) Kyle Makovsky
Abstract Scope Molten salt reactors (MSRs) are increasing in interest due to their high operating temperatures and dearth of limitations often associated with conventional solid fuels and coolants. However, there is a gap in fundamental understanding of key thermophysical properties for some proposed salt systems. In this study, calorimetric data including melting point (Mp), enthalpy (ΔH), and heat capacity (Cp) were collected using a high-sensitivity drop calorimeter from 25 to 1000 °C. Custom Ni-crucibles for these experiments were designed and fabricated in-house. Enthalpies were determined for the binary system MgCl2-NaCl using a suite of compositions ranging between the two end-member compositions, including the eutectic composition of 58% Na:42% Mg. Preliminary data thus far demonstrates the enthalpies of the liquid phase decreased (~8%) over the investigated temperature range. Future work is planned for the binary LiF-ThF4 system and the ternary MgCl2-NaCl-UCl3 system.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Addressing the Thermodynamic Behavior of Volatile Fission Products in Fluoride Salt-Fueled Molten Salt Reactors: Behavior of Cesium and Iodine
Calorimetric Determination of Melting Point Temperatures, Heat Capacities, and Heats of Fusion of Binary NaCl−UCl3 and MgCl2 − UCl3 Systems
Density, Volatility, and Viscosity of Molten Sodium and Potassium Chloride Salts
Design of High Melting Point Materials via Deep Learning and First Principles
Effect of Desulfurizer on Hot Metal Pretreatment
Enthalpy of Mixing of LaCl3 − LiCl:KCl Pseudo Binary Molten Salt System
High Temperature Boron, Lithium, Iron, and Nickel Aqueous Thermochemistry for Pressurized Water Nuclear Reactors
Investigation of the Thermodynamics of Intermetallic Materials in the Simulation of Synthesis in the Ti-Al system
Measuring Interfacial Thermodynamics from High Temperature In situ TEM Based Bicrystals Tested under Mechanical Load
Melting Point, Enthalpy of Fusion, and Excess Heat Capacity of a FLiNaK Determined by the CALPHAD Method
Persistence of Materials Under Extreme Conditions
Phase Diagrams of Metal-Nitrogen Compounds at High Pressure and High Temperature
Predictive Modeling of Complex Liquids with Uncertainty Quantification by Open-Source Tools: Illustrated with Thermodynamic Properties of Molten Salts
The Thermochemical Stability of Rare Earth Oxides and Silicates for Thermal/Environmental Barrier Coating Applications
There is More to Heat Capacity Measurements than Calculating Entropy
Thermo-mechanical Property Prediction of Materials Using a Python Based Interface with Quantum Espresso
Thermodynamic Database Development with a Focus on Corrosion in Potential Nuclear Reactor Molten Salt Systems
Thermodynamic Modelling and Experimental Investigation of LiCl-NaCl-UCl3 and KCl-NaCl-UCl3 Systems
Thermophysical Properties of Key Binary Salt Systems using High-Sensitivity Twin Calvet Drop Calorimetry for Next Generation Molten Salt Reactors

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