• Journal of Advanced Dielectrics
  • Vol. , Issue , (2024)
Chen Wanggen, Wen Fei, Wan Yao, Li Lili, Li Yang, Zhou Yu
Author Affiliations
  • Engineering Research Center of Smart Microsensors and Microsystems, Ministry of Education, College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
  • School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
  • College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
  • Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
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    Abstract

    Piezoelectric materials are commonly used in transducers to convert electromechanical signals due to their energy conversion characteristics. We designed a PIMNT/epoxy 2–2 composite to take full advantage of the excellent beam-mode piezoelectric and acoustic features of PIMNT single crystals. Following the approach used for piezoelectric ceramic composites, we selected PIMNT piezoelectric single crystal and EPO-TEK301-2 epoxy resin for the composite, and combined finite element analysis with experimental preparation. We prepared, tested and analyzed 2–2 piezoelectric single crystal composites with varying volume fractions, which showed high electromechanical coupling properties (kt>75%) and low acoustic impedance (Z<20MRayl). These encouraging findings suggest the possibility of devising high-performance ultrasonic transducers utilizing the PIMNT/epoxy 2–2 composite.

    Manuscript Accepted: Dec. 14, 2023
    Posted: Jan. 24, 2024