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Investigation on the TeO 2 ‐MoO 3 ‐V 2 O 5 System I. Phase Equilibrium
Author(s) -
Marinov M.,
Kozhukharov V.,
Pavlova J.,
Bliznakov G.,
Klissurski D.
Publication year - 1980
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19804630131
Subject(s) - differential thermal analysis , ternary operation , crystallization , atmospheric pressure , ternary numeral system , diffraction , phase (matter) , thermodynamics , analytical chemistry (journal) , phase transition , atmospheric temperature range , invariant (physics) , phase equilibrium , materials science , mineralogy , chemistry , optics , physics , mathematical physics , chromatography , meteorology , organic chemistry , computer science , programming language
The phase equilibrium in the TeO 2 ‐MoO 3 ‐V 2 O 5 system has been determined in air at atmospheric pressure. Differential thermal analysis (DTA), X‐ray diffraction and optical microscopy were used for establishing the phase transitions. Two congruently melting ternary compounds (Te 3 Mo 2 V 2 O 17 and TeMoV 2 O 10 ) were identified by the above methods. Their fields of primary crystallization are entirely within the glass‐formation range. The character and behaviour of the phases, the invariant points as well as the temperature maxima have been discussed. The glass‐formation range correlates with the phase distribution in the system and includes all ternary invariant points.