About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Thermodynamics of Materials in Extreme Environments
|
Presentation Title |
Calorimetric Determination of Melting Point Temperatures, Heat Capacities, and Heats of Fusion of Binary NaCl−UCl3 and MgCl2 − UCl3 Systems |
Author(s) |
Vitaliy G. Goncharov, Xiaofeng Guo, Jason Lonergan, Kyle Makovsky, Bruce McNamara |
On-Site Speaker (Planned) |
Vitaliy G. Goncharov |
Abstract Scope |
NaCl−UCl3 and MgCl2 − UCl3 binary molten salt systems have been proposed as major components for Generation IV (Gen IV) chloride molten salt reactor (MSR) fuels. However, uncertainty remains in several key thermophysical and thermochemical properties of these systems due to limited number of measurements and concerns over purities of the examined samples. In this work, we report calorimetric efforts aimed in examining the melting point temperatures (Mp), isobaric heat capacities (Cp, 25 °C to 800 °C), and heats of fusion (ΔHfus) of high purity ultra-dry NaCl− UCl3 and MgCl2 − UCl3 binary systems with compositions of UCl3 = 0, 20, 40, 60, 80, 100 mol. %. Mp, Cp, and ΔHfus, are assessed in context of previously published data and updated thermophysical parameters are proposed for optimizations of NaCl − MgCl2 − UCl3 phase diagram. |