Lead-free piezoelectric ceramics for high-frequency ultrasound transducers

被引：5
|
作者：
Wu, D. W. [1 ]
Chen, R. M. [1 ]
Zhou, Q. F. [1 ]
Lin, D. M. [1 ]
Chan, H. L. W. [1 ]
Shung, K. K. [1 ]
机构：
[1] Univ So Calif, Dept Biomed Engn, Los Angeles, CA 90089 USA
来源：
2007 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1-6 | 2007年
关键词：
D O I：
10.1109/ULTSYM.2007.652
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This paper presents the latest development of lead-free piezoelectric ceramics and their application to the high frequency ultrasound transducers. Three kinds of lead-free piezoelectric ceramics [(K0.5Na0.5)(0.97)Li-0.03(Nb0.9Ta0.1)O-3, K0.5Na0.5(Nb0.94Sb0.04)O-3 + 0.5mol%MnO2 and K0.5Na0.5NbO3 + 0.5mo1%MnO2] were fabricated and characterized. High frequency (40MHz) ultrasound transducers were successfully fabricated with these ceramics. The performance of the transducers were evaluated and compared with transducers fabricated from lead-based materials. The results suggest that lead-free piezoelectric materials in some degree may serve as an alterative to lead-based piezoelectric materials for high-frequency ultrasonic transducer applications.
引用
收藏
页码：2590 / +
页数：2
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