Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9637
Title: Ternary piezoelectric single-crystal PIMNT based 2-2 composite for ultrasonic transducer applications
Authors: Wang, W
Or, SW 
Yue, Q
Zhang, Y
Jiao, J
Leung, CM
Zhao, X
Luo, H
Keywords: 2-2 piezoelectric composite
PIMNT single crystal
Ultrasonic transducer
Issue Date: 2013
Publisher: Elsevier
Source: Sensors and actuators. A, Physical, 2013, v. 196, p. 70-77 How to cite?
Journal: Sensors and actuators. A, Physical 
Abstract: In order to take the full advantage of excellent beam-mode piezoelectric and acoustic properties of Pb(In1/2Nb1/2)O 3-Pb(Mg1/3Nb2/3)O3-PbTiO 3 (PIMNT) single crystal, PIMNT/epoxy 2-2 composite was designed and prepared with PIMNT volume percent of 69. Excellent properties for ultrasonic transducer applications were achieved, including ultrahigh thickness electromechanical coupling coefficient (kt = 86%), large piezoelectric coefficient (d33 = 1200 pC/N), and low acoustic impedance (Z ~ 20 MRayls). Based on the improved properties, a 2 MHz PIMNT/epoxy 2-2 composite ultrasonic transducer was designed, fabricated, and its performance was compared with a PIMNT/epoxy 1-3 composite ultrasonic transducer and a PIMNT single-crystal ultrasonic transducer, respectively. The PIMNT/epoxy 2-2 composite ultrasonic transducer showed a significant enhancement in both relative pulse-echo sensitivity and -6 dB bandwidth, which were 4 dB higher and 20% broader than those of the PIMNT single-crystal ultrasonic transducer and as excellent as the PIMNT/epoxy 1-3 composite ultrasonic transducer. These promising results suggested the great potential for developing high-performance ultrasonic transducers using the PIMNT/epoxy 2-2 composite.
URI: http://hdl.handle.net/10397/9637
ISSN: 0924-4247
EISSN: 1873-3069
DOI: 10.1016/j.sna.2013.03.014
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