Piezoelectric Properties of Nd and V Cosubstituted Bi4Ti3O12 Ceramics
|
| 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 |
39-42 |
| DOI |
10.4028/www.scientific.net/KEM.320.39 |
| Online since |
September, 2006 |
| Authors |
Satoru Matsuzawa,
Yuji Hiruma,
Rintaro Aoyagi,
Hajime Nagata,
Tadashi Takenaka
|
| Keywords |
Bismuth Titanate, Grain Orientation, Hot Forging, Piezoelectric Property |
| Abstract |
The piezoelectric properties of Nd and V cosubstituted bismuth titanate ceramics,
(Bi4-y,Ndy)1-(x/12)(Ti3-x,Vx)O12 [BNTV-y (x=0.01, y=0.00~1.00)] , are investigated. Furthermore, the
grain orientation effects of BNTV-y ceramics on their piezoelectric properties are studied by the hot
forging (HF) method. The electromechanical coupling factor, k33, of ordinarily fired (OF)
BNTV-y0.75 ceramic was 0.21, which is one of the highest k33 values for bismuth layer-structured
ferroelectrics (BLSFs). On the other hand, the k33 of the grain oriented (HF) BNTV-y0.25 ceramic
was 0.30. |
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