Relationship between vibration direction and high-power characteristics of (001)-textured SrBi2Nb2O9 ceramics

被引:32
作者
Kawada, Shinichiro [1 ]
Ogawa, Hirozumi [1 ]
Kimura, Masahiko [1 ]
Shiratsuyu, Kosuke [1 ]
Higuchi, Yukio [1 ]
机构
[1] Murata Mfg Co Ltd, Kyoto 6178555, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2007年 / 46卷 / 10B期
关键词
high-power characteristics; large amplitude; SrBi2Nb2O9; SBN; bismuth layer-structured ferroelectrics; textured ceramics; vibration velocity; piezoelectricity;
D O I
10.1143/JJAP.46.7079
中图分类号
O59 [应用物理学];
学科分类号
摘要
The effect of the angle between the vibration direction and the oriented direction on high-power characteristics was investigated for < 001 >-textured SrBi2Nb2O9 (SBN) ceramics in the longitudinal mode (33 mode). Specimens with their long side formed at angles of 90 and 45 degrees to the < 001 >-oriented direction were fabricated from a 95%-textured SBN ceramic. Their high-power characteristics were compared with those of a randomly oriented specimen. In the case of the specimen with a 90 degrees angle, the resonant frequency was almost constant during high-vibration-velocity driving. On the other hand, the resonant frequency of the specimen with a 45 degrees angle decreased with increasing vibration velocity as did that of the randomly oriented SBN specimen. Therefore, it is considered that the excellent high-power characteristics of highly textured ceramics depend on the vibration direction for the < 001 >-textured ceramics. The angle between the vibration direction and the < 001 >-oriented direction is important in the excellent high-power characteristics of textured SBN ceramics.
引用
收藏
页码:7079 / 7083
页数:5
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