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Thermodynamic properties of Mg−Ge alloys

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Abstract

The thermodynamic properties of liquid alloys and two-phase mixtures in the Mg−Ge system have been investigated in the approximate temperature range 660° to 1130°C by means of a galvanic cell based on MgCl2 as electrolyte. Derived thermodynamic properties for the germanium-rich liquid alloys have been found to be in good agreement with previous work. The standard free energy of formation of solid Mg2Ge from liquid magnesium and solid germanium has been derived from this work, and from previous studies as:\(\vartriangle F_{Mg_2 Ge}^o = - 29,900 + 7.98T cal.\) valid from 687° to 1115°C. The phase diagram for the system has been found to differ only slightly from that due to Klemm and Westlinning.

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Authors and Affiliations

  1. Henry Krumb School of Mines, Columbia University, New York, N.Y.

    Y. K. Rao (Assistant Professor)

  2. University of Pennsylvania, Philadelphia, Pa.

    G. R. Belton (Professor of Metallurgy and Materials Science)

Authors
  1. Y. K. Rao
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  2. G. R. Belton
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Rao, Y.K., Belton, G.R. Thermodynamic properties of Mg−Ge alloys. Metall Trans 2, 2215–2219 (1971). https://doi.org/10.1007/BF02917553

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