A NEW THERMODYNAMIC CALCULATION FORMULA FOR ACTIVITY OF COMPONENT IN BINARY SYSTEM

Acta Metall Sin

1994, Vol. 30

Issue (22): 444-447 DOI:

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A NEW THERMODYNAMIC CALCULATION FORMULA FOR ACTIVITY OF COMPONENT IN BINARY SYSTEM

DING Xueyong;WANG Wenzhong(Northeastern University;Shenyang)

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DING Xueyong;WANG Wenzhong(Northeastern University;Shenyang). A NEW THERMODYNAMIC CALCULATION FORMULA FOR ACTIVITY OF COMPONENT IN BINARY SYSTEM. Acta Metall Sin, 1994, 30(22): 444-447.

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Abstract A new formula for calculating the activities of the components in any binary system has been proposed based on Miedema's model for calculating the formation heat of binary alloys.The formula can be used in both solid and liquid solutions. This method has been used to calculate the activities in the binary system taken from 75 elements. The results show that this method is feasible and agrees very well with the experimental data for most systems. The ratio of the same sign of either the positive deviation or the negative deviation to solution reaches 87.5 %.

Key words: binary system activity thermodynamic calculation

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1994/V30/I22/444

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