Crystal Growth and Electric-Field-Induced Strain in Bi0.5Na0.5TiO3 Crystals
|
| 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 |
35-38 |
| DOI |
10.4028/www.scientific.net/KEM.320.35 |
| Online since |
September, 2006 |
| Authors |
Sho Yoshimura,
Yuji Noguchi,
Masaru Miyayama
|
| Keywords |
Bismuth Sodium Titanate (BNT), Ferroelectric, Flux Method, Single Crystal |
| Abstract |
Large Bi0.5Na0.5TiO3 (BNT) single crystals with 10 mm × 10 mm × 5 mm were successfully grown
by a flux method using BNT powder and the mixed flux composed of Bi2O3 and NaF. Dielectric
measurements show a dielectric-permittivity peak at 310°C, which is the result of the gradual phase
transition from rhombohedral (R3c) to tetragonal (P4bm) structure. Electric-field induced strain
measurements along [100]C reveal that the effective piezoelectric strain constant (d33
*) was
estimated to be 130 pm/V in a multidomain state. |
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