由含固溶体二元相图提取活度

Calculation of Activities from Phase Diagrams Involving Solid Solution

本文提出了一种由固溶体类型的二元相图提取组元活度的新公式。在该式中各组元的活度系数可以表示为组成的函数。用此公式对Ag—Pb体系进行了计算,证明了该方法是有效的。

The Analytical expressions for calculating and activity coefficients at a fixed temperature from phase diagrams involving equilibrium between solid and liquid solutions are derived. In the expressions, activities and activity coefficients are functions of the composition. These expressions are applied to system Ag-Pb, and the results are efficient.