Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18407
Title: Cylindrically shaped ultrasonic linear array fabricated using PIMNT/epoxy 1-3 piezoelectric composite
Authors: Wang, W
Or, SW 
Yue, Q
Zhang, Y
Jiao, J
Ren, B
Lin, D
Leung, CM
Zhao, X
Luo, H
Keywords: 1-3 piezoelectric composite
PIMNT single crystal
Ultrasonic linear array
Issue Date: 2013
Publisher: Elsevier Science Sa
Source: Sensors and actuators, a : physical, 2013, v. 192, p. 69-75 How to cite?
Journal: Sensors and Actuators, A: Physical 
Abstract: In order to improve the flexibility of Pb(In1/2Nb 1/2)O3-Pb(Mg1/3Nb2/3)O 3-PbTiO3 (PIMNT) single crystal and make full use of the ultrahigh piezoelectric property in focused ultrasonic transducers, PIMNT/epoxy 1-3 composite with a volume fraction of 60% was prepared by a modified dice-and-fill method. Excellent properties for ultrasonic transducer applications have been achieved, such as higher thickness electromechanical coupling coefficient (kt = 84%), lower acoustic impedance (Z = 19 MRayls), and moderate dielectric constant (33T0=2040). Based on the improved flexibility of as-prepared PIMNT/epoxy 1-3 composite, a cylindrically shaped ultrasonic linear array has been designed, fabricated, and characterized. The cylindrically shaped ultrasonic linear array has achieved an ultra-broad bandwidth (-6 dB) of 128%, which is a significant improvement over the plane linear array. These promising results show that the PIMNT/epoxy 1-3 composite can be used to develop high-performance focused ultrasonic transducers.
URI: http://hdl.handle.net/10397/18407
ISSN: 0924-4247
DOI: 10.1016/j.sna.2012.12.020
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