Thermodynamic Activity of Liquid Zn–Cd Alloys Studied by EMF Method with Zirconia Solid Electrolyte

  • Katayama Iwao
    Department of Materials Science and Processing, Faculty of Engineering, Osaka University
  • Maki Kazunari
    Department of Materials Science and Processing, Faculty of Engineering, Osaka University
  • Fukuda Yutaka
    Department of Materials Science and Processing, Faculty of Engineering, Osaka University
  • Ebara Atsushi
    Department of Materials Science and Processing, Faculty of Engineering, Osaka University
  • Iida Takamichi
    Department of Materials Science and Processing, Faculty of Engineering, Osaka University

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タイトル別名
  • Thermodynamic Activity of Liquid Zn–Cd Alloys Studied by EMF Method with Zirconia Solid Electrolyte
  • Thermodynamic Activity of Liquid Zn Cd

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抄録

The E.M.F. of the galvanic cell with zirconia solid electrolytes was measured to determine the activities of zinc at 800–900 K over the entire composition range of liquid Zn–Cd alloys, and some thermodynamic functions were derived from the results. The cell used was as follows:<BR>(−) W|Zn, ZnO|ZrO2(+Y2O3)|Zn–Cd(l), ZnO|W (+).<BR>The activities of zinc in the alloys at 800 and 900 K show moderately positive deviations from Raoult’s law over the whole composition range. They are compared with the literature data. The results were used to calculate the concentration fluctuations in long wavelength limit in the liquid alloys.

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