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Effect of poling temperature on piezoelectric coefficient in ( N a 0.52 K 0.4425 L i 0.0375 )( N b 0.86 T a 0.06 S b 0.08 ) O 3 ceramics
Author(s) -
Huan Yu,
Wang Xiaohui,
Zhang Shaopeng,
Gao Renlong,
Li Longtu
Publication year - 2013
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201330040
Subject(s) - poling , lamellar structure , phase transition , materials science , tetragonal crystal system , orthorhombic crystal system , ceramic , piezoelectricity , electric field , crystallography , phase (matter) , piezoelectric coefficient , condensed matter physics , transition temperature , composite material , crystal structure , dielectric , chemistry , optoelectronics , ferroelectricity , physics , organic chemistry , quantum mechanics , superconductivity
The influence of poling temperature ( T p ) on d 33 andd 33 *of (Na 0.52 K 0.4425 Li 0.0375 )(Nb 0.86 Ta 0.06 Sb 0.08 )O 3 ceramics is investigated. No notable stress is induced as there is not apparent phase transition on cooling when the ceramics are poled below orthorhombic‐tetragonal phase transition temperature ( T o–t ). However, stress emerges by phase transition when poled above T o–t leading to degrade d 33 . Consequently, the ceramics poled near T o–t exhibit the best d 33 of 350 pC N −1 . In addition,d 33 * , derived from intrinsic and extrinsic contributions, remains about the same with T p because the ultrafine, lamellar domains could easily respond to an external electric field.