鉛-蒼鉛合金の熱力学的研究

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  • Thermodynamic Studies on Lead-Bismuth Alloys
  • ナマリ-ソウエン ゴウキン ノ ネツリキガクテキ ケンキュウ

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Thermodynamic studies on liquid Pb-Bi alloys have been carried out by means of the electromotive force method. Electrode concentration cells of the following type were operated at 370∼480°; Pb(liquid)/PbCl_2,  KCl-LiCl/Pb-Bi (liquid). The experimental results indicate that this system shows a negative deviation from Raoult’s law and that the excess entropies are practically zero. The calculated heats of mixing are slightly less negative than those of Seltz’s e.m.f data, though less positive than those of the calorimetric data. Thus the excess free energy and excess enthalpy can be written as follows, G_m^e=H_m^e=-1,150x_Pb ·x_Bi cal/mol. The phase diagram of this system is discussed on the basis of the present results.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 24 (10), 668-672, 1960

    公益社団法人 日本金属学会

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