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Structure and Dielectric Properties of BaTiO 3 – BiYO 3 Perovskite Solid Solutions
Author(s) -
Huang Xuechen,
Hao Hua,
Zhang Shujun,
Liu Hanxing,
Zhang Wenqin,
Xu Qi,
Cao Minghe
Publication year - 2014
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12817
Subject(s) - tetragonal crystal system , crystallite , materials science , dielectric , permittivity , perovskite (structure) , phase transition , curie temperature , ferroelectricity , analytical chemistry (journal) , phase (matter) , mineralogy , crystallography , chemistry , crystal structure , condensed matter physics , ferromagnetism , chromatography , physics , optoelectronics , organic chemistry , metallurgy
(1− x ) BaTiO 3 – x BiYO 3 [(1− x ) BT – x BY ] polycrystalline ceramics were prepared by solid‐state reaction method. The ceramics are in tetragonal phase when x ≤ 0.04, transform to pseudocubic at x ≥ 0.06, showing a classic ferroelectric to relaxor transition at x = 0.06, where the phase transition temperature was found to shift to higher temperature with increasing frequency. The dielectric permittivity peaks were analyzed by the modified Curie–Weiss law. Both parameters ΔT diffuse and ΔT relaxor were found to increase with increasing BY content, demonstrating a stronger relaxor characteristic.