Sulphur Partial Pressure Measurements on Metal-Sulphide Systems by the EMF Method Using CaS-2 mass%ZrS<SUB>2</SUB> Solid Electrolytes

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  • Ono Katsutoshi
    Department of Metallurgy, Faculty of Engineering, Kyoto University
  • Oishi Toshio
    Department of Metallurgy, Faculty of Engineering, Kyoto University
  • Moriyama Joichiro
    Department of Metallurgy, Faculty of Engineering, Kyoto University

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  • CaS-2 mass%ZrS<SUB>2</SUB>固体電解質起電力法による金属-硫化物系の硫黄分圧測定
  • CaS-2mass%ZrS2固体電解質起電力法による金属-硫化物系の硫黄分圧測定
  • CaS 2 massパーセント ZrS2 コタイ デンカイシツ キデンリョクホ

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EMF measurements on galvanic cells involving solid-sulphide electrolytes may yield valuable sulphur potential data of metal-sulphur systems. CaS-2 mass%ZrS2 solid solution was expected to satisfy the conditions as solid electrolyte.<BR>The EMF measurements on the cells [(I)] Mo (s)+Mo2S3 (s)/Sulphide electrolyte/Cu (l)+Cu-S (l) [(II)] W (s)+WS2 (s)/Sulphide electrolyte/Cu (l)+Cu-S (l) [(III)] Mo (s)+Mo2S3 (s)/Sulphide electrolyte/Fe (s)+Fe-S (l) [(IV)] W (s)+WS2 (s)/Sulphide electrolyte/Fe (s)+Fe-S (l) [(V)] Mo (s)+Mo2S3 (s)/Sulphide electrolyte/Ni (s)+Ni-S (l) [(VI)] W (s)+WS2 (s)/Sulphide electrolyte/Ni (s)+Ni-S (l) [(VII)] Mo (s)+Mo2S3 (s)/Sulphide electrolyte/Co (s)+Co-S (l) [(VIII)] W (s)+WS2 (s)/Sulphide electrolyte/Co (s)+Co-S (l) [(IX)] Mo (s)+Mo2S3 (s)/Sulphide electrolyte/Cr (s)+CrS (s) [(X)] W (s)+WS2 (s)/Sulphide electrolyte/Cr (s)+CrS (s) have been performed in the temperature range between 1250 and 1573 K. The obtained sulphur partial pressures of the metal-sulphide systems were compared with those from the H2-H2S gas equilibrium investigations.

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