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Enhancement of electrical properties in the ternary PMN–PT–PZ through compositional variation, crystallographic texture, and quenching
Author(s) -
Dursun Sinan,
MensurAlkoy Ebru,
Unver Mustafa Unsal,
Alkoy Sedat
Publication year - 2020
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.16919
Subject(s) - materials science , quenching (fluorescence) , piezoelectricity , ceramic , curie temperature , ternary operation , texture (cosmology) , analytical chemistry (journal) , dipole , dielectric , mineralogy , crystallography , composite material , condensed matter physics , chemistry , fluorescence , optics , optoelectronics , ferromagnetism , physics , image (mathematics) , organic chemistry , chromatography , artificial intelligence , computer science , programming language
Ternary compositions of Pb(Mg 1/3 Nb 2/3 )O 3 –PbZrO 3 –PbTiO 3 (PMN–PZT) piezoelectric ceramic have been investigated with an aim to optimize the electrical properties for piezoelectric applications. Quenching from temperatures above the Curie point was proved to enhance the properties up to two folds in the 0.40PMN–0.25PZ–0.35PT composition. This enhancement is believed to have arisen as a result of the freezing of defect dipoles in their random distribution, and thus prevention of their domain pinning effect. Texturing the optimum composition using BaTiO 3 template particles through templated grain growth process and quenching the textured ceramic led to further enhancement with piezoelectric charge coefficient increasing from 190 to 750 pC/N, relative permittivity increasing from 860 to 1815 and remanent polarization increasing from 16 to 30 μC/cm 2 .