A new method to determine the un-poled elastic properties of ferroelectric materials

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ID: 37154
2017
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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.
Reference Key
bowen2017ascience Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Bowen, Chris. R.;Dent, Andrew C.;Stevens, Ron;Cain, Markys G.;Avent, Andrew;
Journal science and technology of advanced materials
Year 2017
DOI
DOI not found
URL
http://dx.doi.org/10.1080/14686996.2017.1302274
Keywords Keywords not found

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