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<p>Thermodynamic properties of iron antimonides were investigated by measuring the electromotive force with a liquid electrolyte in the temperature range of 298–423 K. The measurements were performed using equilibrium samples taken from the two-phase regions FeSb<sub>2</sub> + Sb and FeSb + FeSb<sub>2</sub> of the system Fe—Sb. The phase composition of all the samples was monitored using powder X-ray diffraction. The partial molar functions of iron in alloys, as well as the standard thermodynamic functions of formation and the standard entropies of compounds FeSb and FeSb<sub>2</sub> were calculated. A comparative analysis of the obtained results and those found in published works was carried out.</p>

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Thermodynamic study of iron antimonides by electromotive force measurements

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • A. R. Aghayeva,
  • E. N. Orujlu,
  • Y. I. Djafarov,
  • L. F. Mashadiyeva,
  • D. M. Babanly

摘要

Thermodynamic properties of iron antimonides were investigated by measuring the electromotive force with a liquid electrolyte in the temperature range of 298–423 K. The measurements were performed using equilibrium samples taken from the two-phase regions FeSb2 + Sb and FeSb + FeSb2 of the system Fe—Sb. The phase composition of all the samples was monitored using powder X-ray diffraction. The partial molar functions of iron in alloys, as well as the standard thermodynamic functions of formation and the standard entropies of compounds FeSb and FeSb2 were calculated. A comparative analysis of the obtained results and those found in published works was carried out.