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Anisotropy of the high‐power piezoelectric properties of Pb(Zr,Ti)O3

Slabki, Mihail and Wu, Jiang and Weber, Michael and Breckner, Patrick and Isaia, Daniel and Nakamura, Kentaro and Koruza, Jurij (2019):
Anisotropy of the high‐power piezoelectric properties of Pb(Zr,Ti)O3.
In: Journal of the American Ceramic Society, 102 (10), Wiley, pp. 6008-6017, ISSN 00027820,
DOI: 10.1111/jace.16464,
[Online-Edition: https://ceramics.onlinelibrary.wiley.com/doi/full/10.1111/ja...],
[Article]

Abstract

Piezoceramics are widely‐used in high‐power applications, whereby the material is driven in the vicinity of the resonance frequency with high electric fields. Evaluating material's performance at these conditions requires the consideration of inherent nonlinearity, anisotropy, and differences between individual vibration modes. In this work, the relation between electromechanical properties at large vibration velocity and the utilized vibration mode is investigated for a prototype hard piezoceramic. The nonlinear behavior is determined using a combined three‐stage pulse drive method, which enables the analysis of resonant and antiresonant conditions and the calculation of electromechanical parameters. The deviations of coupling coefficients, compliances, and piezoelectric coefficients at high‐power drive were found to be strongest for the transverse length vibration mode. Differences in the mechanical quality factors were observed only between the planar and transverse length modes, which were rationalized by the different strain distribution profiles and the contribution of different loss tensor components. In addition, the influence of the measurement configuration was investigated and a correction method is proposed. The differences between vibration modes are further confirmed by heat generation measurements under continuous drive, which revealed that the strongest heat generation appears in the radial mode, while transverse and longitudinal length modes show similar temperature increase.

Item Type: Article
Erschienen: 2019
Creators: Slabki, Mihail and Wu, Jiang and Weber, Michael and Breckner, Patrick and Isaia, Daniel and Nakamura, Kentaro and Koruza, Jurij
Title: Anisotropy of the high‐power piezoelectric properties of Pb(Zr,Ti)O3
Language: English
Abstract:

Piezoceramics are widely‐used in high‐power applications, whereby the material is driven in the vicinity of the resonance frequency with high electric fields. Evaluating material's performance at these conditions requires the consideration of inherent nonlinearity, anisotropy, and differences between individual vibration modes. In this work, the relation between electromechanical properties at large vibration velocity and the utilized vibration mode is investigated for a prototype hard piezoceramic. The nonlinear behavior is determined using a combined three‐stage pulse drive method, which enables the analysis of resonant and antiresonant conditions and the calculation of electromechanical parameters. The deviations of coupling coefficients, compliances, and piezoelectric coefficients at high‐power drive were found to be strongest for the transverse length vibration mode. Differences in the mechanical quality factors were observed only between the planar and transverse length modes, which were rationalized by the different strain distribution profiles and the contribution of different loss tensor components. In addition, the influence of the measurement configuration was investigated and a correction method is proposed. The differences between vibration modes are further confirmed by heat generation measurements under continuous drive, which revealed that the strongest heat generation appears in the radial mode, while transverse and longitudinal length modes show similar temperature increase.

Journal or Publication Title: Journal of the American Ceramic Society
Volume: 102
Number: 10
Publisher: Wiley
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
Date Deposited: 06 Aug 2019 06:31
DOI: 10.1111/jace.16464
Official URL: https://ceramics.onlinelibrary.wiley.com/doi/full/10.1111/ja...
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