Abstract
The relationships between the Wagner interaction and Margules coefficients are derived to discuss their limitations and to clarify incorrect construction of the excess Gibbs energy from the partial excess Gibbs energies, expressed as linear functions of mole fractions. Margules-type equations with Henrian reference states are obtained, and their significance is discussed. An estimate for the Gibbs energy of melting of graphite is obtained, and the use of activity coefficients for deriving the Gibbs energy of melting of refractory elements is suggested. This research is part of the effort in materials properties at the U.S. Bureau of Mines.
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Gokcen, N.A. Wagner interaction coefficients and modified margules equations. JPE 15, 147–150 (1994). https://doi.org/10.1007/BF02646357
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DOI: https://doi.org/10.1007/BF02646357