Piezoelectric Properties in Textured Ceramics of SrBi2Nb2O9 |
| Journal |
Key Engineering Materials (Volume 320) |
| Volume |
Electroceramics in Japan IX |
| Edited by |
Keiichi Katayama, Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki |
| Pages |
15-18 |
| DOI |
10.4028/www.scientific.net/KEM.320.15 |
| Online since |
September, 2006 |
| Authors |
Takuya Sawada,
Hirozumi Ogawa,
Masahiko Kimura,
Kosuke Shiratsuyu,
Akira Ando
|
| Keywords |
Bismuth Layer Structured Ferroelectrics, Piezoelectricity, Temperature Coefficient of Resonance Frequency, Templated Grain Growth Method, Thickness Shear Vibration Mode |
| Abstract |
A study has been done for the piezoelectric properties in texured ceramics of SrBi2Nb2O9 (SBN)
fabricated by the templated grain growth (TGG) method. Remanent polarization along to the
stacking direction increased with the orientation degrees. That corresponds to the increases in
electro-mechanical coupling coefficient with orientation degree. The temperature coefficient of the
resonant frequency (TCF) in thickness sheer vibration mode changed from negative to positive with
increasing orientation degrees, and an excellent TCF of -0.4 ppm/°C was obtained for the specimen
with an orientation degree of 76%. |
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