含钾冰晶石熔体电导率的估算

利用简单模型、串联模型和并联模型分别估算Ｋ３ＡｌＦ６－Ｎａ３ＡｌＦ６和Ｋ３ＡｌＦ６－Ｌｉ３ＡｌＦ６二元系的电导率，发现在添加剂浓度较低时，简单模型能够得到较好的结果。据此我们预测了一些常用的添加剂如ＮａＣｌ、ＬｉＦ、ＡｌＦ３、Ａｌ２Ｏ，ＭｇＦ２和ＣａＦ２等对钾冰晶石熔体电导率的影响，并进一步利用简单模型推算Ｋ３ＡｌＦ６－ＡｌＦ３－ＬｉＦ三元系在一些温度截面的电导率。

ESTIMATION ON CONDUCTIVITES OF POTASSIUM CRVOLITE MELTS

The conduedvities of K3AlF6-Na3AlF6 binary system are calculated using several models inAning simple model, serial model and parallel model. Compared with experimental data, the results are consistent with the fact that serial model gives a good prediction when melt is close to idea solution while simple model can give good approximation when concentration of solute is not very high. So conductivities of K3AlF6-Li3AlF6 system are estimated with serial model and the effect of additives to the conductivities of K3AlF6 melts is predicted with serial model as additives are less than 0.5 mol percent in potassium cryolite -base melts . In addition, the conductivities of the ternary systems K3AlF6-Na3AlF6-AlF3 are also estimated.