Study of the NaBr–DyBr3 phase diagram by differential thermal analysis

Autor:	U. Niemann, Miroslaw Miller, Klaus Hilpert, Dietmar Kobertz, L. Singheiser
Rok vydání:	2005
Předmět:	Stereochemistry Component (thermodynamics) Thermodynamics Condensed Matter Physics Sodium bromide chemistry.chemical_compound chemistry Differential thermal analysis Phase (matter) Binary system Physical and Theoretical Chemistry Thermal analysis Instrumentation Phase diagram Eutectic system
Zdroj:	Thermochimica Acta. 430:73-77
ISSN:	0040-6031
DOI:	10.1016/j.tca.2004.12.012
Popis:	The phase diagram of the quasi binary NaBr–DyBr3 system was determined by differential thermal analysis (DTA) applied to 27 samples covering the complete composition range of the system. The 3NaBr*DyBr3(s) compound is present in the solid-phase in addition to the pure component halides NaBr(s) and DyBr3(s). The DyBr3(s) and 3NaBr*DyBr3(s) phases showed a polymorphic transition at 1112 and at 733 K, respectively. The {DyBr3(s) + 3NaBr*DyBr3(s)} eutectic mixture melts at 709 K giving a liquid of the molar composition x(NaBr) = 0.62. The 3NaBr*DyBr3(s) phase melts peritectically at 765 K. The phase diagram obtained in the present study virtually agrees with the calculated one available in literature. © 2004 Elsevier B.V. All rights reserved.
Databáze:	OpenAIRE
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