Electrical Properties and Piezoelectric Properties of CaBi2Ta2O9-Based Ceramics |
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| Journal | Key Engineering Materials (Volumes 421 - 422) |
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| Volume | Asian Ceramic Science for Electronics III and Electroceramics in Japan XII |
| Edited by | Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki |
| Pages | 46-49 |
| DOI | 10.4028/www.scientific.net/KEM.421-422.46 |
| Citation | Toji Tokusu et al., 2009, Key Engineering Materials, 421-422, 46 |
| Online since | December, 2009 |
| Authors | Toji Tokusu, Hirokazu Miyabayashi, Yuji Hiruma, Hajime Nagata, Tadashi Takenaka |
| Keywords | CaBi2Ta2O9, Coercive Field, Curie Temperature, Piezoelectric Properties, Sensor |
| Abstract | Electrical and piezoelectric properties of CaBi2Ta2O9-based ceramics have been studied. Temperature dependence of dielectric properties indicated that the Curie temperature, TC, was 923ºC. Coercive field, EC, and remanent polarization, Pr, became saturated with increasing temperature. It is expected that higher-temperature than 250ºC could promote the domain wall motion during the poling treatment. From resonance and antiresonance measurements, piezoelectric properties such as the maximum phase, max, electromechanical coupling factor, k33, and piezoelectric g constant, g33, were 86.1º, 0.085 and 8.4 × 10-3 V∙m/N, at room temperature, respectively. |
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