Development of Lead-Free Piezoelectric Materials Using Domain Wall Engineering
| Periodical | Key Engineering Materials (Volume 320) |
|---|---|
| Main Theme | Electroceramics in Japan IX |
| Edited by | Keiichi Katayama, Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki |
| Pages | 151-154 |
| DOI | 10.4028/www.scientific.net/KEM.320.151 |
| Citation | Satoshi Wada et al., 2006, Key Engineering Materials, 320, 151 |
| Online since | September, 2006 |
| Authors | Satoshi Wada, Koichi Yako, Tomomitsu Muraishi, Hirofumi Kakemoto, Takaaki Tsurumi |
| Keywords | Barium Titanate, Domain Wall, Domain Wall Engineering, Engineered Domain Configuration, Lead-Free Piezoelectric, Piezoelectric Properties, Single Crystal |
| Price | US$ 28,- |
For the [111] oriented barium titanate (BaTiO3) single crystals, the patterning electrode was applied to induce the finer engineered domain configurations with domain size of 3 2m. The poling treatment was performed at 134 ˚C under electric fields below 6 kV/cm to inhibit the burning of the patterning electrode with photoresist. As the results, the gradient domain sizes from 3 to 8-9 2m were induced into the 31 resonator. The d31 was measured at -243.2 pC/N, and this value was almost 70 % of the expected d31 of –337.7 pC/N for the resonator with domain size of 3 2m. This difference was originated from lower applied electric field below 6 kV/cm. However, this study was revealed that the patterning electrode was very powerful tool to induce much finer domain sizes below 5 2m.
