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Thermodynamic characteristics of praseodymium in the gallium–aluminum eutectic melt

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Abstract

The Ga–Al eutectic melt saturated with praseodymium was studied in the temperature range 572–1076 K by electromotive force (emf) method relative to the reference electrode (InL + PrIn3, where L is the liquid phase) in a LiCl–KCl–CsCl eutectic electrolyte. The partial molar thermodynamic functions (enthalpy, entropy, and Gibbs energy) of praseo dymium in a Ga–Al eutectic melt were calculated. According to the emf measurements of the two-phase Pr–Ga–AlL + intermetallic compound alloys equilibrated with the Ga–Al eutectic melt saturated with praseodymium, there are intermetallic compounds PrGa6, PrGa4, and Pr0.22Ga0.78(PrGa2) in the temperature ranges 572–741, 741–883, and 883–1076 K, respectively.

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Authors and Affiliations

  1. Institute of Metallurgy, Ural Branch of the Russian Academy of Sciences, 101 ul. Amundsena, 620016, Ekaterinburg, Russian Federation

    S. Yu. Melchakov

  2. Ural Federal University named after the first President of Russia B. N. Yeltsyn, 19 ul. Mira, 620002, Ekaterinburg, Russian Federation

    L. F. Yamshchikov, V. A. Ivanov, V. A. Volkovich, A. G. Osipenko & M. Sh. Ismailov

  3. JSC “SSC RIIAR,”, 9 Zapadnoe shosse, 433510, Dimitrovgrad, Ulyanovsk Region, Russian Federation

    A. G. Osipenko

Authors
  1. S. Yu. Melchakov
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  2. L. F. Yamshchikov
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  3. V. A. Ivanov
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  4. V. A. Volkovich
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  5. A. G. Osipenko
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  6. M. Sh. Ismailov
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Correspondence to S. Yu. Melchakov.

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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1601–1607, September, 2018.

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Melchakov, S.Y., Yamshchikov, L.F., Ivanov, V.A. et al. Thermodynamic characteristics of praseodymium in the gallium–aluminum eutectic melt. Russ Chem Bull 67, 1601–1607 (2018). https://doi.org/10.1007/s11172-018-2264-7

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  • DOI: https://doi.org/10.1007/s11172-018-2264-7

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