Reinvestigation of phase equilibria in TbCl3-LiCl binary system

A. Dańczak , Beata Salamon , Jan Kapala , Leszek Rycerz , Marcelle Gaune-Escard

Abstract

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.
Author A. Dańczak - [Wrocław University of Science and Technology]
A. Dańczak,,
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, Beata Salamon (EaE / IChaFT / DNCh)
Beata Salamon,,
- Department of Non-organic Chemistry
, Jan Kapala - [Wrocław University of Science and Technology]
Jan Kapala,,
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, Leszek Rycerz - [Wrocław University of Science and Technology]
Leszek Rycerz,,
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, Marcelle Gaune-Escard - [Institut Universitaire des Systèmes Thermiques Industriels]
Marcelle Gaune-Escard,,
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Journal seriesJournal of Thermal Analysis and Calorimetry, ISSN 1388-6150, e-ISSN 1572-8943, (A 20 pkt)
Issue year2017
Vol130
No1
Pages25-33
Publication size in sheets0.5
Keywords in EnglishDSC; Terbium(III) chloride; Lithium chloride; Phase diagram; CALPHAD; Associate Solution Model
ASJC Classification1606 Physical and Theoretical Chemistry; 3104 Condensed Matter Physics
DOIDOI:10.1007/s10973-017-6315-3
Languageen angielski
File
Reinvestigation_of_phase_equilibria_in_TbCl3-LiCl.pdf 713,87 KB
Score (nominal)20
ScoreMinisterial score = 20.0, 10-07-2019, ArticleFromJournal
Publication indicators Scopus Citations = 2; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.073; WoS Impact Factor: 2017 = 2.209 (2) - 2017=1.917 (5)
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