A new method for calculating the activity of stable compound from binary phase diagram  

作　　者：CHEN Dengfu DONG Lingyan BAI Chenguang LIU Qingcai WANG Chuanjun 

机构地区：[1]College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China

出　　处：《Rare Metals》2006年第5期448-451,共4页稀有金属（英文版）

基　　金：This work is financially supported by the National Natural Science Foundation of China (No. 50074036).

摘　　要：A new method to calculate the activity of a stable compound in a binary phase diagram was presented and discussed. According to the formula for calculating activity from the binary phase diagram, the equilibrium constant can be calculated through the mass action principle after the activities of two pure components were computed respectively. Based on that, the activity of a stable compound can be easily obtained at last. The activity of the stable compound InSb is calculated in the In-Sb binary system by using this method. The result is well consistent with another calculation value.A new method to calculate the activity of a stable compound in a binary phase diagram was presented and discussed. According to the formula for calculating activity from the binary phase diagram, the equilibrium constant can be calculated through the mass action principle after the activities of two pure components were computed respectively. Based on that, the activity of a stable compound can be easily obtained at last. The activity of the stable compound InSb is calculated in the In-Sb binary system by using this method. The result is well consistent with another calculation value.

关 键 词：physic-chemistry of metallurgy phase diagram mass action principle stable compound activity 

分 类 号：TF01[冶金工程—冶金物理化学]