Premium
Enhanced Piezoelectric Properties of ( Ba 1− x Ca x )( Ti 0.92 Sn 0.08 ) O 3 Lead‐Free Ceramics
Author(s) -
Zhu LiFeng,
Zhang BoPing,
Zhao XiaoKun,
Zhao Lei,
Zhou PengFei,
Li JingFeng
Publication year - 2013
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.12038
Subject(s) - orthorhombic crystal system , tetragonal crystal system , sintering , piezoelectricity , materials science , analytical chemistry (journal) , dielectric , phase (matter) , piezoelectric coefficient , electromechanical coupling coefficient , mineralogy , crystallography , chemistry , composite material , crystal structure , chromatography , organic chemistry , optoelectronics
( Ba 1− x Ca x )( Ti 0.92 Sn 0.08) O 3 ( x = 0.00–0.06 mol) ceramics with a high relative density over 96% were prepared by a conventional sintering method at 1480°C. At room temperature, a polymorphic phase transition from orthorhombic phase to tetragonal phase was confirmed by the XRD patterns in the composition range of 0.04 ≤ x ≤ 0.06. A high piezoelectric coefficient d 33 up to 568 pC/N was obtained at x = 0.05 mol, which is higher than the other component of ( Ba , Ca )( Ti , Sn ) O 3 system. At the same time, the corresponding planar electromechanical coupling factor k p , converse piezoelectric coefficient dS / dE , and dielectric constant ε r reach 47.7%, 1013 pm/V, and 23000, respectively. These results indicate that the ( Ba , Ca )( Ti , Sn ) O 3 ceramics are a promising candidate to replace for the lead‐based piezoelectric materials.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom