Activity and Diffusivity of Oxygen in the Liquid Dilute BixSb1-x Solutions

  • Dominika Jendrzejczyk-Handzlik AGH University of Science and Technology Faculty of Non-Ferrous Metals 30 Mickiewicza Avenue 30-059 Kraków Poland
  • Piotr Handzlik AGH University of Science and Technology Faculty of Non-Ferrous Metals 30 Mickiewicza Avenue 30-059 Kraków Poland
  • Krzysztof Fitzner AGH University of Science and Technology Faculty of Non-Ferrous Metals 30 Mickiewicza Avenue 30-059 Kraków Poland

Abstract


The diffusivity and activity coefficient of oxygen in liquid antimony, bismuth and antimony-bismuth alloys were determined from coulometric titration experiments, which were performed in the temperature range from 985 to 1185 K. The diffusivity in pure metals

(in cm2/s) is: DO(Bi)^0=(1.3∙〖10〗^(-2) )  exp⁡((-53143)/RT) and D_O(Sb)^0=(2.24∙〖10〗^(-4) )  exp⁡((-14591)/RT).

The standard free energy of solution of oxygen in liquid antimony, bismuth and antimony-bismuth alloys according to the reaction ½ O2 (g) = O (infinite dilution) is calculated. The activity coefficient of oxygen γ_(O(Bi,Sb or Bi-Sb))^0 has been calculated at 1085 K as a function of the alloy composition. It was demonstrated that Wagner's model with one adjustable parameter h gave a satisfactory description of the experimental data.

Published
2018/10/17
How to Cite
Jendrzejczyk-Handzlik, D., Handzlik, P., & Fitzner, K. (2018). Activity and Diffusivity of Oxygen in the Liquid Dilute BixSb1-x Solutions. Journal of Mining and Metallurgy, Section B: Metallurgy, 54(2), 261. Retrieved from https://aseestant.ceon.rs/index.php/jmm/article/view/16800
Issue
Vol. 54 No. 2 (2018)
Section
Original Scientific Paper

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