Comparison of Some Methods on Prediction of Activity Interaction Coefficient

Changxiang Xiang; Ningxin Zhang

Volume 5 Issue 1

Mar. 1998

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 1998 > 5(1): 13-15

Changxiang Xiangand Ningxin Zhang, Comparison of Some Methods on Prediction of Activity Interaction Coefficient, J. Univ. Sci. Technol. Beijing, 5(1998), No. 1, pp. 13-15.

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Changxiang Xiangand Ningxin Zhang, Comparison of Some Methods on Prediction of Activity Interaction Coefficient, J. Univ. Sci. Technol. Beijing, 5(1998), No. 1, pp. 13-15.

Changxiang Xiangand Ningxin Zhang, Comparison of Some Methods on Prediction of Activity Interaction Coefficient, J. Univ. Sci. Technol. Beijing, 5(1998), No. 1, pp. 13-15.

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Changxiang Xiangand Ningxin Zhang, Comparison of Some Methods on Prediction of Activity Interaction Coefficient, J. Univ. Sci. Technol. Beijing, 5(1998), No. 1, pp. 13-15.

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Metallurgy

Comparison of Some Methods on Prediction of Activity Interaction Coefficient

Changxiang Xiang and
Ningxin Zhang

+ Author Affiliations

Received: 25 October 1997

Abstract

Abstract

Based on Miedema's semiempirical formation enthalpy model for binary alloys, free volume theory and a general solution model, a new model for prediction of activity interaction coefficient ε₁¹ is proposed. The calculated results are better in agreement with the experimental values than the two previous models. The related theories and models are discussed according to the degree of agreement with experimental values.
- Miedema’s semiempirical formation enthalpy model;
- activity interaction coefficient;
- free volume theory;
- similarity coefficient