Abstract
Bismuth sodium titanate (Bi0.5Na0.5TiO3), BNT, with a small amount of additives including La, Sm, Nd, and Nb were prepared by a conventional mixed oxide method. Powders of all compositions were calcined at 800 °C for 2 hrs to form a pure perovskite phase. All specimens were sintered at 1150 °C for 2 hrs to achieve at least 95% theoretical densities. Samples of the BNT with La modification exhibited a dielectric permittivity of 515, electromechanical coupling factors kt of 45% and kp of 13%, and a piezoelectric charge coefficient d33 of 100. The properties of the La-modified BNT suggest that these compositions are potential candidates for hydrophone applications.
| Original language | English (US) |
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| Pages | 775-778 |
| Number of pages | 4 |
| State | Published - 1996 |
| Event | Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) - East Brunswick, NJ, USA Duration: Aug 18 1996 → Aug 21 1996 |
Other
| Other | Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) |
|---|---|
| City | East Brunswick, NJ, USA |
| Period | 8/18/96 → 8/21/96 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering