J Mater Sci Technol ›› 1992, Vol. 8 ›› Issue (6): 421-426.

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θ Correction to the Analytical Expressions for Calculating Activities from Phase Diagrams Involving Intermediate Compounds

XIE Fanyou ZHANG Fan ZHOU Guozhi ** Beijing University of Science and Technology,Beijing,100083,China*** Institute of Chemical Metallurgy,Academia Sinica,Beijing,100080,China+ To whom correspondence should be addressed   

  • Received:1992-11-28 Revised:1992-11-28 Online:1992-11-28 Published:2009-10-10

Abstract: A set of correct expressions for calculating activities and activity coefficients from binary phase diagrams involving intermediate compounds are presented in this paper by the introduction of a correct parameter θ. The application of these expressions to system Mg-Sn shows that they are quite feasible.

Key words: activity, phase diagram, θ correction