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Optimization of the binary Ge-Ru system

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Journal of Phase Equilibria

Abstract

After an experimental study of its phase equilibria by DTA and XRD and thermody namic properties by direct synthesis calorimetry, the Ge-Ru system has been numerically assessed with help of the program Nancy Un. The experimental enthalpies of formation are: Ge0.6Ru0.4:δf H(1173K) =-34.8 (±1.0) kj/mol-atoms Geo.5Ruo.5:δf H(1173K) = -28.7 (±13) kj/mol-atoms The comparison between computation and experimental results leads to new ideas about this system. The liquid phase cannot be described perfectly with a polynomial expansion to the third power, and it seems that associations could explain this behavior.

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Authors and Affiliations

  1. Laboratoire de Chimie du Solide Minéral UMR 7555 Groupe de Thermodynamique Métallurgique, Université Henri Poincaré, Nancy 1, BP 239, F 54506, Vandceuvre Les Nancy Cedex, France

    J. Charles, L. Perring & J. C. Gachon

  2. Institut de Chimie Minérale et Analytique, BCH, Université de Lausanne, CH 1015, Lausanne, Switzerland

    L. Perring

Authors
  1. J. Charles
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  2. L. Perring
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  3. J. C. Gachon
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Charles, J., Perring, L. & Gachon, J.C. Optimization of the binary Ge-Ru system. JPE 19, 449 (1998). https://doi.org/10.1361/105497198770341932

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  • DOI: https://doi.org/10.1361/105497198770341932

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