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New A 0.50 A′ 0.50 F 3 Ferroelastic Phases with VF 3 Structure (A, A′ = Al, Ti, Cr, In, Tl)
Author(s) -
Guelin J.,
Yacoubi A.,
Ravez J.,
Grannec J.
Publication year - 1988
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.19885570124
Subject(s) - isothermal microcalorimetry , phase transition , diffraction , crystallography , strain (injury) , materials science , phase (matter) , curie temperature , analytical chemistry (journal) , chemistry , thermodynamics , condensed matter physics , enthalpy , physics , optics , medicine , organic chemistry , chromatography , ferromagnetism
A phase transition has been detected in InF 3 and in several A 0.50 A′ 0.50 F 3 phases (A, A′ = Al, Ti, Cr, In, Tl) by micro‐DTA, microcalorimetry, and X‐ray diffraction. The thermal dependence of the spontaneous strain has been determined. This transition is of ferroelastic‐prototype nature. The Curie temperature for the A 0.50 A′ 0.50 F 3 composition is intermediate to those previously reported for the related binary trifluorides.