Thermodynamic properties of alloys of the binary Sb–Yb system

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Mixing enthalpies of melts of the binary Sb–Yb system have been determined for the first time in the ranges 0 < xYb < 0.155 at 960–1030 K and 0.89 < xYb < 1 at 1140 K. It has been found that the melts form with great exothermic effects, and the partial enthalpies of the components at infinite dilution are: \(\Delta \bar H_{Sb}^\infty \) =–260, \(\Delta \bar H_{Sb}^\infty \) =–205 kJ/mol. An ideal associated solution model has been selected to describe the temperature and concentration dependences of thermodynamic properties of the melts, and the parameters of the model have been optimized through self-consistent analysis of the available data on the phase diagram. The model description allows to calculate the Gibbs energies and entropies of mixing of the melts, the activities of the components and the molar fractions of the associates, and the enthalpies and entropies of formation of the solid phases.

作者简介

V. Sudavtsova

National Academy of Sciences of Ukraine

编辑信件的主要联系方式.
Email: sud@ipms.kiev.ua
乌克兰, Kiev

M. Shevchenko

National Academy of Sciences of Ukraine

Email: sud@ipms.kiev.ua
乌克兰, Kiev

M. Ivanov

National Academy of Sciences of Ukraine

Email: sud@ipms.kiev.ua
乌克兰, Kiev

V. Berezutskii

National Academy of Sciences of Ukraine

Email: sud@ipms.kiev.ua
乌克兰, Kiev

V. Kudin

National Academy of Sciences of Ukraine

Email: sud@ipms.kiev.ua
乌克兰, Kiev

K. Pastushenko

National Academy of Sciences of Ukraine

Email: sud@ipms.kiev.ua
乌克兰, Kiev

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