Bowen, Chris R, Dent, Andrew C, Stevens, Ron, Cain, Markys G ORCID: 0000-0002-8413-3104 and Avent, Andrew
(2017)
A new method to determine the un-poled elastic properties of ferroelectric materials.
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 18 (1).
pp. 264-272.
Abstract
Piezoelectric devices with complex electrode geometries often contain ferroelectric regions that experience little or no electric field and remain unpolarised. Since the un-poled and poled material properties differ it is desirable to account for these regions in a device when developing predictive models or to design piezoelectric transducers. The lack of published data on the elastic properties for un-poled ferroelectrics, specifically the numerous commercial compositions such as lead zirconate titanate, reflects the difficulty of experimental measurement. In this work, a method for predicting un-poled properties from more commonly available poled data has been developed. A new method of calculating these properties is presented which provides a rapid and practical solution to the problem of evaluating the isotropic stiffness and Poisson’s ratio for an un-poled ferroelectric material. The way in which this calculation has been derived and validated is presented and detailed comparisons are made with alternative methods and experimental data.
Item Type: | Article |
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Uncontrolled Keywords: | Ferroelectric, un-poled, poled, piezoelectric ceramic, elastic |
Depositing User: | Symplectic Admin |
Date Deposited: | 05 Feb 2019 16:43 |
Last Modified: | 19 Jan 2023 01:05 |
DOI: | 10.1080/14686996.2017.1302274 |
Open Access URL: | https://doi.org/10.1080/14686996.2017.1302274 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3032310 |