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Piezoelectric Ceramics in the PbSnO 3 –Pb(Mg 1/3 Nb 2/3 )O 3 –PbTiO 3 Ternary System
Author(s) -
Wang Dawei,
Cao Maosheng,
Zhang Shujun
Publication year - 2011
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/j.1551-2916.2011.04857.x
Subject(s) - materials science , phase boundary , piezoelectricity , dielectric , piezoelectric coefficient , ceramic , coercivity , electromechanical coupling coefficient , ferroelectricity , permittivity , ternary operation , analytical chemistry (journal) , mineralogy , composite material , phase (matter) , condensed matter physics , chemistry , optoelectronics , physics , computer science , chromatography , organic chemistry , programming language
Piezoelectric ceramics in the ternary system (0.8− x ) PbSnO 3 –0.2 Pb(Mg 1/3 Nb 2/3 )O 3 – x PbTiO 3 ( PSn–PMN–PT , x = 0.42–0.47) were synthesized. Morphotropic phase boundary ( MPB ) compositions, located at ~ PT = 0.43–0.45 were confirmed by X‐ray diffraction, dielectric, piezoelectric, and ferroelectric properties. The coercive field E C , internal bias field E i, and mechanical quality factor Q m were found to increase with increasing PT content, indicative of piezoelectric “hardening” characteristics, while the optimum dielectric and piezoelectric properties were achieved for the MPB composition 0.36PSn–0.2PMN–0.44PT , with dielectric permittivity ε r , piezoelectric coefficient d 33, and planar electromechanical coupling k p being on the order of 2930, 510 pC/N and 55%, respectively. In addition, the aging behavior of the piezoelectric ceramics was studied, with aging rate of d 33 ~−6%, k p ~−2%, ε r ~−7% per decade, respectively, similar to commercial PZT4 ceramics.