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Open AccessArticle

Characterization of 1-3 Piezoelectric Composite with a 3-Tier Polymer Structure

1
Beijing Key Laboratory for Sensor, Beijing Information Science & Technology University, Beijing 100192, China
2
Beijing Key Laboratory for Sensor, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
*
Author to whom correspondence should be addressed.
Materials 2020, 13(2), 397; https://doi.org/10.3390/ma13020397
Received: 13 December 2019 / Revised: 11 January 2020 / Accepted: 13 January 2020 / Published: 15 January 2020
In order to boost the electromechanical coupling factor and decrease the characteristic impedance, a 1-3 piezoelectric composite with a 3-tier polymer structure was designed and fabricated, in which epoxy resin constitutes the middle layer and silicone rubber is used to clamp the epoxy. The effective parameters of the composite, such as resonant frequency, electromechanical coupling factor, and characteristic impedance, were studied by the finite element method and experiment. The experimental results indicate that the electromechanical coupling factor of the composite is enhanced by 8.4% and the characteristic impedance is decreased by 52.8%, compared with the traditional 1-3 ceramic/epoxy composite. View Full-Text
Keywords: 1-3 piezoelectric composite; 3-tier polymer structure; finite element method; electromechanical coupling factor; characteristic impedance 1-3 piezoelectric composite; 3-tier polymer structure; finite element method; electromechanical coupling factor; characteristic impedance
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Sun, R.; Wang, L.; Zhang, Y.; Zhong, C. Characterization of 1-3 Piezoelectric Composite with a 3-Tier Polymer Structure. Materials 2020, 13, 397.

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