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采用冷却曲线法测定了Na_3AlF_6-Al_2O_3-La_2O_3熔盐体系的熔点,并导出了该体系熔点的数学模型,经计算机计算绘出了熔点的等值图。结果表明,该体系的熔点随Al_2O_3和La_2O_3浓度的增加而下降,二者的影响很相近。
The melting point of Na_3AlF_6-Al_2O_3-La_2O_3 molten salt system was determined by the cooling curve method, and the mathematical model of the melting point of the system was derived. The isotherm of melting point was calculated by computer. The results show that the melting point of the system decreases with the increase of Al 2 O 3 and La 2 O 3 concentrations, and the effects of the two are similar.