TY - JOUR
T1 - Cylindrically shaped ultrasonic linear array fabricated using PIMNT/epoxy 1-3 piezoelectric composite
AU - Wang, Wei
AU - Or, Siu Wing
AU - Yue, Qingwen
AU - Zhang, Yaoyao
AU - Jiao, Jie
AU - Ren, Bo
AU - Lin, Di
AU - Leung, Chung Ming
AU - Zhao, Xiangyong
AU - Luo, Haosu
N1 - Funding Information:
This work was financially supported by the Ministry of Science and Technology of China through 973 Program (nos. 2013CB632900 and 2009CB623305 ), the Natural Science Foundation of China (nos. 61001041 , 11090332 and 51272268 ), Science and Technology Commission of Shanghai Municipality (no. 12DZ0501000 ), Shanghai Rising-Star Program (no. 11QA1407500 ), Open Project from Shanghai Institute of Technical Physics, CAS (no. IIMDKFJJ-11-08 ), the Fund of Shanghai Institute of Ceramics (no. Y29ZC4140G ) and The Hong Kong Polytechnic University ( I-ZV7P and G-U741 ).
PY - 2013/1/23
Y1 - 2013/1/23
N2 - 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.
AB - 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.
KW - 1-3 piezoelectric composite
KW - PIMNT single crystal
KW - Ultrasonic linear array
UR - https://www.scopus.com/pages/publications/84872447887
U2 - 10.1016/j.sna.2012.12.020
DO - 10.1016/j.sna.2012.12.020
M3 - Journal article
SN - 0924-4247
VL - 192
SP - 69
EP - 75
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
ER -