Thermal analysis of the oxide–chloride systems GdCl3–Gd2O3 and GdCl3–KCl–Gd2O3

The thermal analysis of the oxide–chloride systems GdCl 3 –Gd 2 O 3 and GdCl 3 –KCl–Gd 2 O 3 with the Gd 2 O 3 content up to 0.09 mol fractions was studied in the temperature range 298–1173 K using two methods: differential scanning calorimetry and the method of cooling curves. The liquidus temperat...

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Published inJournal of thermal analysis and calorimetry Vol. 144; no. 4; pp. 1343 - 1349
Main Authors Korzun, Iraida V., Nikolaeva, Elena V., Zakir’yanova, Irina D.
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.05.2021
Springer Nature B.V
Subjects
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Cooling curves
Dissolution
Gadolinium oxides
Inorganic Chemistry
Liquidus
Measurement Science and Instrumentation
Physical Chemistry
Polymer Sciences
Potassium chloride
Solubility
Thermal analysis
Liquidus temperatures
DSC
Gadolinium chloride
Method of cooling curves
Solubility
Gadolinium oxide
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Summary:The thermal analysis of the oxide–chloride systems GdCl 3 –Gd 2 O 3 and GdCl 3 –KCl–Gd 2 O 3 with the Gd 2 O 3 content up to 0.09 mol fractions was studied in the temperature range 298–1173 K using two methods: differential scanning calorimetry and the method of cooling curves. The liquidus temperatures in these systems have been determined. The solubility of the oxide and the thermodynamic characteristics of the dissolution process were calculated. It was established experimentally that the dissolution of Gd 2 O 3 proceeds by a chemical mechanism, with the formation of GdOCl oxychloride. The received data revealed the main regularities of Gd 2 O 3 solubility in molten GdCl 3 –KCl–Gd 2 O 3 systems.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-020-09558-2