Prediction of Immiscibility Boundaries of the Systems K2O‐SiO2, K2O‐Li20‐SiO2, K20‐Na2O‐Si02, and K2O‐BaO‐SiO2
Prediction of Immiscibility Boundaries of the Systems K2O‐SiO2, K2O‐Li20‐SiO2, K20‐Na2O‐Si02, and K2O‐BaO‐SiO2
复制标题
K2O-SiO2、K2O-Li20-SiO2、K20-Na2O-SiO2 和 K2O-BaO-SiO2 体系不混溶边界的预测
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
M. Tomozawa
中科院分区：
文献类型：
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作者：
Y. Kawamoto;M. Tomozawa
在早期的工作中，三元硅酸盐玻璃系统的不可混性边界的预测方法，涉及两个已知的二元不可混性边界和一个三元玻璃组合物的测得的不可混性温度。在目前的工作中，该方法被扩展到的情况下，其中的两个二元不溶边界是未知的，并作为一个例子，三元硅酸盐系统包含K2 O。首先，通过测量K_2 O-Li_2 O（或Na_2 O）-SiO_2系统中三种玻璃的不溶温度，估算了K_2 O-SiO_2系统的不溶边界。利用这一结果估计了K2 O-Li 2 O-SiO2、K2 O-Na 2 O-SiO2和K2 O-BaO-SiO2体系的不混溶边界。在选定的组合物中，结果与实验确定的不相容温度相当吻合。
In earlier work, a prediction method of the immiscibility boundary of a ternary silicate glass system was developed involving two known binary immiscibility boundaries and a measured immiscibility temperature of one ternary glass composition. In the present work, the method is extended to the case where one of the two binary immiscibility boundaries is not known and is applied as an example to ternary silicate systems containing K2O. First, the immiscibility boundary of the system K2O-SiO2 is estimated by measuring the immiscibility temperatures of three glasses in the system K2O-Li2O (or Na2O)-SiO2. Using this result the immiscibility boundaries of the systems K2O-Li2O-SiO2, K2O-Na2O-SiO2, and K2O-BaO-SiO2 are estimated. The results agree reasonably well with the experimentally determined immiscibility temperatures at selected compositions.