ジルコニア固体電解質電池法による溶融Tl-Bi系合金の活量測定

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  • Activity of Liquid Tl-Bi Alloys Measured by an EMF Method Using Zirconia Electrolyte
  • ジルコニア コタイ デンカイシツ デンチホウ ニ ヨル ヨウユウ Tl Biケ
  • ジルコニア固体電解質電池法による溶融Te-Bi系合金の活量測定
  • ジルコニア コタイ デンカイシツ デンチホウ ニ ヨル ヨウユウ Te Biケ
  • Activity of Liquid Te-Bi Alloys Measured by an EMF Method Using Zirconia Electrolyte

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The emf measurements of the following galvanic cells have been carried out to determine the standard free energy of formation of Bi2O3(s) and the thermodynamic quantities of liquid Tl-Bi alloys:<BR>(This article is not displayable. Please see full text pdf.) <BR>The standard free energy of formation of Bi2O3(s) are determined as follows:<BR>(This article is not displayable. Please see full text pdf.) <BR>The activities of both components in liquid Tl-Bi alloys at 850 and 950 K deviate to negative from Raoult’s law over the whole concentration ranges and agree well with the previous results. The γ°Bi and γ°Tl values are estimated to be 0.031 and 0.17 at 850 K and 0.037 and 0.20 at 950 K, respectively. The α function of bismuth against NBi does not show a constant value, suggesting no regular solution behavior in the system.<BR>The free energy of mixing at 850 K shows negative values than ΔGid, and the peak value of ΔG is −9.3 kJ/mol at about NBi=0.46. The heat of mixing also shows negative values. The peak value of ΔH is −4.4 kJ/mol at about NBi=0.40.

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  • 日本金属学会誌

    日本金属学会誌 56 (8), 900-906, 1992

    公益社団法人 日本金属学会

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