Molten fluoride salts are under development for use as fuel coolant and thermal storage in industrial nuclear energy production. This study focuses on the experimental and molecular dynamic investigation of thermal conductivity and ion diffusion in the eutectic molten salts of NaF–KF and NaF–KF–MgF₂. Experimental and calculated data demonstrate that the temperature-dependent thermal conductivity can be accurately represented as a decaying linear function for both melts. The significant diffusion coefficient of fluorine ions in the NaF–KF molten system can be attributed to the considerable number of Coulomb repulsions among the abundant negative ions in the irregular system. The findings of this study provide insights into the behavior of NaF–KF and NaF–KF–MgF₂ molten salt mixtures under operating conditions in high-temperature power plants.

熔融氟化物盐正在开发中，用作工业核能生产中的燃料冷却剂和热储存。_{本研究重点是NaF-KF和NaF-KF-MgF 2}共晶熔盐中热导率和离子扩散的实验和分子动力学研究。实验和计算数据表明，两种熔体的温度相关导热率可以准确地表示为衰减线性函数。NaF-KF熔融体系中氟离子的显着扩散系数可归因于不规则体系中丰富的负离子之间存在大量库仑排斥。本研究的结果为了解 NaF-KF 和 NaF-KF-MgF ₂熔盐混合物在高温发电厂运行条件下的行为提供了见解。