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Morphotropic Phase Boundary in the Pb‐Free (1 − x )BiTi 3/8 Fe 2/8 Mg 3/8 O 3 – x CaTiO 3 System: Tetragonal Polarization and Enhanced Electromechanical Properties
Author(s) -
Mandal Pranab,
ManjónSanz Alicia,
Corkett Alex J.,
Comyn Tim P.,
Dawson Karl,
Stevenson Timothy,
Bennett James,
Henrichs Leonard F.,
Bell Andrew J.,
Nishibori Eiji,
Takata Masaki,
Zanella Marco,
Dolgos Michelle R.,
Adem Umut,
Wan Xinming,
Pitcher Michael J.,
Romani Simon,
Tran T. Thao,
Halasyamani P. Shiv,
Claridge John B.,
Rosseinsky Matthew J.
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201405452
Subject(s) - materials science , phase boundary , crystallography , phase (matter) , analytical chemistry (journal) , physics , chemistry , chromatography , quantum mechanics
Lead‐free bismuth‐based perovskite oxides with polarization directed along the [001] p primitive perovskite unit cell edge, analogous to tetragonal PbTiO 3 , are synthesized at ambient pressure. Enhanced piezoelectric properties, large polarizations, and high depolarization temperatures are observed in the wide morphotropic phase boundary region formed with a rhombohedral phase, with up to 92.5% Bi on the perovskite A site.