Reinvestigation of phase equilibria in TbCl3-LiCl binary system

被引：4

作者：

Danczak, A. ^{[1
]}

Salamon, B. ^{[2
]}

Kapala, J. ^{[1
]}

Rycerz, L. ^{[1
]}

Gaune-Escard, M. ^{[3
]}

机构：

[1] Wroclaw Univ Sci & Technol, Fac Chem, Div Analyt Chem & Analyt Met, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland

[2] Wroclaw Univ Econ, Fac Engn & Econ, Dept Inorgan Chem, Komandorska 118-120, PL-53345 Wroclaw, Poland

[3] Ecole Polytech, CNRS, IUSTI, UMR 7343, 5 Rue Enrico Fermi, F-13453 Marseille 13, France

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2017年 / 130卷 / 01期

关键词：

DSC; Terbium(III) chloride; Lithium chloride; Phase diagram; CALPHAD; Associate Solution Model; TERNARY CHLORIDES; THERMODYNAMIC PROPERTIES; CRYSTAL-STRUCTURES; DIAGRAMS; RB; LANTHANIDES; ENTHALPIES; NA; LI;

D O I：

10.1007/s10973-017-6315-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The phase equilibria in the terbium(III) chloride- lithium chloride pseudobinary system were established by means of differential scanning calorimetry. It was established that the pure terbium(III) chloride undergoes solid-solid phase transition at 790 K and melts at 859 K. The TbCl3-LiCl pseudobinary system is characterized by the existence of two compounds. First one, namely Li3TbCl6, forms at 553 K and melts incongruently at 727 K. Second compound, LiTbCl4, decomposes in the solid state at 609 K. The composition of Li3TbCl6-TbCl3 eutectic corresponding to terbium(III) chloride mole fraction x = 0.521 (T = 665 K) was found from Tammann plot, which predict, through application of the lever rule, the variation of the enthalpy associated with eutectic melting as a function of composition. The obtained results have been compared with the literature data concerning for the TbCl3-LiCl pseudobinary system. The phase diagram of the TbCl3-LiCl pseudobinary system was also optimized by CALPHAD method.

引用

页码：25 / 33

页数：9

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