NOVEL LEAD ZIRCONATE TITANATE COMPOSITE VIA FREEZING TECHNOLOGY FOR HIGH FREQUENCY TRANSDUCER APPLICATIONS-Reference-Cited by-同舟云学术

NOVEL LEAD ZIRCONATE TITANATE COMPOSITE VIA FREEZING TECHNOLOGY FOR HIGH FREQUENCY TRANSDUCER APPLICATIONS

Published:2011-01 Issue:01 Volume:01 Page:85-89
ISSN:2010-135X
Container-title:Journal of Advanced Dielectrics
language:en
Short-container-title:J. Adv. Dielect.

Author:

ZHU B. P.¹,ZHOU Q. F.¹,HU C. H.¹,SHUNG K. K.¹,GORZKOWSKI E. P.²,PAN M. J.²

Affiliation:

1. NIH Transducer Resource Center and Department of Biomedical Engineering, University of Southern California, Los Angeles, California 90089-1111, USA

2. Naval Research Laboratory, Code 6351, 4555 Overlook Ave SW, Washington, DC 20375, USA

Abstract

Novel PZT-5A ceramic-polymer composite was prepared via freezing technology. This composite exhibited good dielectric and ferroelectric behaviors. At 1 kHz, the dielectric constant and the dielectric loss were 546 and 0.046, respectively, while the remnant polarization was 13.0 μC/cm2 at room temperature. The electromechanical coupling coefficient (kt) of PZT-5A composite was measured to be 0.54, which is similar to that of PZT piezoelectric ceramic. The piezoelectric coefficient (d33) of PZT-5A composite was determined to be ~250 pC/N. Using this composite, a 58 MHz single element transducer with the bandwidth of 70% at –6dB was built, and the insertion loss was tested to be –29dB around the central frequency.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Condensed Matter Physics,Ceramics and Composites,Electronic, Optical and Magnetic Materials

Link

https://www.worldscientific.com/doi/pdf/10.1142/S2010135X11000112

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