“…As a type of kindred element, NaF possesses highly similar physical properties to LiF, which makes NaF/BeF 2 (FNaBe) mixed salts a promising candidate to replace FLiBe in MSR applications. , Initially, the physical properties of FNaBe melts were studied to explore the feasibility of applying them as a coolant and fuel salt carrier, with a phase diagram as the main subject of research . The phase diagrams of NaF-BeF 2 and NaF-BeF 2 –UF 4 were determined to confirm the applicability of the ternary face system as a liquid medium for transporting nuclear fuel in nuclear reactors . With the development of computational chemistry and numerical simulation methods, many computational methods have been developed to investigate the thermal properties of molten salts, including the soft-sphere equation of state method and first-principles molecular dynamics (FPMD) simulations. , In addition, the thermal properties of FNaBe, such as thermal conductivity, viscosity, density, and phase transition behavior, were predicted by theoretical calculations .…”