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	Broadband and high sensitive time-of-flight diffraction ultrasonic transducers based on pmnt/epoxy 1-3 piezoelectric composite
	Liu, Dongxu1,2; Yue, Qingwen1,2; Deng, Ji1,2; Lin, Di1; Li, Xiaobing1; Di, Wenning1; Wang, Xi'an1; Zhao, Xiangyong1; Luo, Haosu1
刊名	Sensors
	2015-03-01
卷号	15期号:3页码:6807-6817
关键词	Time-of-flight diffraction Ultrasonic transducer Pmnt 1-3 piezoelectric composite
ISSN号	1424-8220
DOI	10.3390/s150306807
通讯作者	Luo, haosu(hsluo@mail.sic.ac.cn)
英文摘要	5-6 mhz pmnt/epoxy 1-3 composites were prepared by a modified dice-and-fill method. they exhibit excellent properties for ultrasonic transducer applications, such as ultrahigh thickness electromechanical coupling coefficient k(t) (85.7%), large piezoelectric coefficient d(33) (1209 pc/n), and relatively low acoustic impedance z (1.82 x 10(7) kg/(m(2)s)). besides, two types of time-of-flight diffraction (tofd) ultrasonic transducers have been designed, fabricated, and characterized, which have different matching layer schemes with the acoustic impedance of 4.8 and 5.7 x 10(6) kg/(m(2)s), respectively. in the detection on a backwall of 12.7 mm polystyrene, the former exhibits higher detectivity, the relative pulse-echo sensitivity and -6 db relative bandwidth are -21.93 db and 102.7%, respectively, while the later exhibits broader bandwidth, the relative pulse-echo sensitivity and -6 db relative bandwidth are -24.08 db and 117.3%, respectively. these tofd ultrasonic transducers based on pmnt/epoxy 1-3 composite exhibit considerably improved performance over the commercial pzt/epoxy 1-3 composite tofd ultrasonic transducer.
WOS关键词	PT SINGLE-CRYSTAL ; NDE APPLICATIONS ; FABRICATION ; PERFORMANCE ; HOMOGENEITY
WOS研究方向	Chemistry ; Electrochemistry ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000354160900110
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2376522
专题	中国科学院大学
通讯作者	Luo, Haosu
作者单位	1.Univ Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, Shanghai 201800, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Dongxu,Yue, Qingwen,Deng, Ji,et al. Broadband and high sensitive time-of-flight diffraction ultrasonic transducers based on pmnt/epoxy 1-3 piezoelectric composite[J]. Sensors,2015,15(3):6807-6817.
APA	Liu, Dongxu.,Yue, Qingwen.,Deng, Ji.,Lin, Di.,Li, Xiaobing.,...&Luo, Haosu.(2015).Broadband and high sensitive time-of-flight diffraction ultrasonic transducers based on pmnt/epoxy 1-3 piezoelectric composite.Sensors,15(3),6807-6817.
MLA	Liu, Dongxu,et al."Broadband and high sensitive time-of-flight diffraction ultrasonic transducers based on pmnt/epoxy 1-3 piezoelectric composite".Sensors 15.3(2015):6807-6817.

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