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Structures and Properties of Pb ( Zr 0.5 Ti 0.5 ) O 3 − Pb ( Zn 1/3 Nb 2/3 ) O 3 − Pb ( Ni 1/3 Nb 2/3 ) O 3 Ceramics for Energy Harvesting Devices
Author(s) -
Yuan Dewang,
Yang Ying,
Hu Querui,
Wang Yiping
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.13175
Subject(s) - materials science , phase boundary , piezoelectricity , phase (matter) , phase diagram , ternary operation , dielectric , analytical chemistry (journal) , ceramic , mineralogy , crystallography , chemistry , composite material , chromatography , optoelectronics , organic chemistry , computer science , programming language
Piezoelectric ceramics with large energy density coefficient d 33 · g 33 value have been found suitable for piezoelectric energy harvesting applications. In this study, the phase structures and piezoelectric properties of x Pb ( Zr 0.5 Ti 0.5 )O 3 − y Pb ( Zn 1/3 Nb 2/3 )O 3 −(1− x − y ) Pb ( Ni 1/3 Nb 2/3 ) O 3 ( x PZT − y PZN −(1− x − y ) PNN ) ceramic were investigated with systematically varying PZN and PNN components. The ternary phase diagram of PZT − PZN − PNN system was illustrated and the composition region of morphotropic phase boundary (MPB) was determined. Piezoelectric and dielectric measurements verify that the materials in MPB region all present large d 33 and d 33 · g 33 values. In particular, very high d 33 · g 33 coefficients of 20162.2 × 10 −15 m 2 /N and 21026.3 × 10 −15 m 2 /N are observed from samples 0.75 PZT −0.15 PZN −0.1 PNN and 0.8 PZT −0.05 PZN −0.15 PNN with compositions located on the rhombohedral phase side near MPB because the dielectric coefficient ε 33 T /ε 0 decreases faster than the d 33 coefficient at this side.