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Dean, J.S, Harding, J.H and Sinclair, D.C (2014) Simulation of impedance spectra for a full three-dimensional ceramic microstructure using a finite element model. Journal of the American Ceramic Society, 97 (3). 885 - 891. ISSN 0002-7820
Abstract
A method of characterizing electrically heterogeneous electroceramics for a full three-dimensional collection of randomly shaped grains is presented. Finite element modeling, solving Maxwell's equations in space and time is used to simulate impedance spectroscopy (IS) data. This technique overcomes several deficiencies associated with previous methods used to simulate IS data and allows comprehensive treatment of a full three-dimensional granular representation of ceramic microstructure without the requirement for equivalent circuits based on the Brickwork layer model (BLM) or the introduction of constant phase elements to describe any nonideality of the IS response. This is applied to a full three-dimensional ceramic microstructure with varying grain size and electrical properties to generate IS plots that highlight limitations of the BLM in data analysis. © 2013 The American Ceramic Society.
Metadata
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Copyright, Publisher and Additional Information: | © 2013 The American Ceramic Society. This is an author produced version of a paper subsequently published in Journal of the American Ceramic Society. Uploaded in accordance with the publisher's self-archiving policy | ||||
Dates: |
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Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) | ||||
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Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 18 Jun 2014 14:32 | ||||
Last Modified: | 18 Jun 2014 14:32 | ||||
Published Version: | http://dx.doi.org/10.1111/jace.12750 | ||||
Status: | Published | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1111/jace.12750 |
Available Versions of this Item
- Simulation of impedance spectra for a full three-dimensional ceramic microstructure using a finite element model. (deposited 18 Jun 2014 14:32) [Currently Displayed]