４端子法によるＮａ３ＡｌＦ６‐Ａｌ２Ｏ３‐ＡｌＦ３系融体の導電率測定

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タイトル別名
  • Electrical conductivity measurement of Na<sub>3</sub>AlF<sub>6</sub>-Al<sub>2</sub>O<sub>3</sub>-AlF<sub>3</sub> melts by new four electrodes method
  • 4 タンシホウ ニヨル Na3AlF6 Al2O3 AlF3 ユウ タイケイ

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説明

Four electrodes method for measuring the electrical conductivity σ of Na3AlF6-Al2O3-AlF6 melts of aluminum electrolytes was improved, in which any cell constants are unessential. This method usually brings the conductivity data more reliable than those obtained by conventional methods. Iso-electrical conductivity lines of the Na3AlF6-Al2O3-AlF3 melts were plotted using the data of this method. Dependency of σ on the composition of the melts is discussed in terms of the distribution of ion species (AlF4-, AlOF2-and AlO2-) in this system. A plot of σ for the charge carrier concentration (Na++free F-) has a linear relationship.

収録刊行物

  • 軽金属

    軽金属 32 (5), 247-253, 1982

    一般社団法人 軽金属学会

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