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- Title
Enhanced Piezoelectric Properties of ( Ba<sub>1− x</sub> Ca<sub> x</sub>)( Ti<sub>0.92</sub> Sn<sub>0.08</sub>) O<sub>3</sub> Lead-Free Ceramics.
- Authors
Zhu, Li ‐ Feng; Zhang, Bo ‐ Ping; Zhao, Xiao ‐ Kun; Zhao, Lei; Zhou, Peng ‐ Fei; Li, Jing ‐ Feng; Roedel, J.
- Abstract
( Ba1− x Ca x)( Ti0.92 Sn0.08) O3 ( 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 d33 up to 568 pC/N was obtained at x = 0.05 mol, which is higher than the other component of ( Ba, Ca)( Ti, Sn) O3 system. At the same time, the corresponding planar electromechanical coupling factor kp, converse piezoelectric coefficient dS/ dE, and dielectric constant εr reach 47.7%, 1013 pm/V, and 23000, respectively. These results indicate that the ( Ba, Ca)( Ti, Sn) O3 ceramics are a promising candidate to replace for the lead-based piezoelectric materials.
- Subjects
CERAMICS; SINTERING; PHASE transitions; PIEZOELECTRIC materials; DIELECTRICS
- Publication
Journal of the American Ceramic Society, 2013, Vol 96, Issue 1, p241
- ISSN
0002-7820
- Publication type
Article
- DOI
10.1111/jace.12038