Design and Fabrication of 15-MHz Ultrasonic Transducers Based on a Textured Pb(Mg1/3Nb2/3)O3-Pb(Zr, Ti)O3Ceramic

Yizhe Sun, Laiming Jiang, Ruimin Chen, Runze Li, Haochen Kang, Yushun Zeng, Yongke Yan, Shashank Priya, Qifa Zhou

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Ultrasound medical imaging is an entrenched and powerful tool for medical diagnosis. Image quality in ultrasound is mainly dependent on performance of piezoelectric transducer elements, which is further related to the electromechanical performance of the constituent piezoelectric materials. With rising need for piezoelectric materials with better performance and low cost, a highly 〈001〉 textured piezo ceramic, Pb(Mg1/3Nb2/3)O3-Pb(Zr, Ti)O3, has been developed. Recently, textured ceramic materials can be produced at low cost and exhibit high piezoelectric strain constants and large electromechanical coupling coefficients. In this work, 15-MHz ultrasonic transducers with an effective aperture of 2.5 mm in diameter based on these highly 〈001〉 textured ceramics have been successfully fabricated. The fabricated transducers achieved a central frequency of 15 MHz, a fractional bandwidth of 67% (at -6 dB), a high effective electromechanical coupling coefficient [Formula: see text] of 0.55, and a low insertion loss (IL) of 21 dB. Ex vivo ultrasonic imaging of a porcine eyeball was used to assess the tomography quality of the transducer. The results show that utilized textured ceramic has a great potential in developing ultrasonic devices for biomedical imaging purposes.

Original languageEnglish (US)
Pages (from-to)3095-3101
Number of pages7
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume69
Issue number11
DOIs
StatePublished - Nov 1 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 1986-2012 IEEE.

Keywords

  • Biomedical ultrasonic imaging
  • piezoelectric
  • textured ceramics
  • ultrasound imaging
  • ultrasound transducer
  • Transducers
  • Ceramics
  • Equipment Design
  • Niobium
  • Ultrasonics
  • Animals
  • Swine
  • Lead
  • Titanium

PubMed: MeSH publication types

  • Journal Article

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