Skip to main navigation Skip to search Skip to main content

Cylindrically shaped ultrasonic linear array fabricated using PIMNT/epoxy 1-3 piezoelectric composite

  • Wei Wang
  • , Siu Wing Or
  • , Qingwen Yue
  • , Yaoyao Zhang
  • , Jie Jiao
  • , Bo Ren
  • , Di Lin
  • , Chung Ming Leung
  • , Xiangyong Zhao*
  • , Haosu Luo
  • *Corresponding author for this work
  • CAS - Shanghai Institute of Ceramics
  • Hong Kong Polytechnic University
  • University of Chinese Academy of Sciences

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)69-75
Number of pages7
JournalSensors and Actuators A: Physical
Volume192
DOIs
StatePublished - 2013
Externally publishedYes

Keywords

  • 1-3 piezoelectric composite
  • PIMNT single crystal
  • Ultrasonic linear array

Fingerprint

Dive into the research topics of 'Cylindrically shaped ultrasonic linear array fabricated using PIMNT/epoxy 1-3 piezoelectric composite'. Together they form a unique fingerprint.

Cite this