Strain effects on the ionic conductivity of Y-doped ceria: A simulation study
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Author(s)
Burbano, Mario
Marrocchelli, Dario
Watson, Graeme W.
Date Issued
November 2013
Journal
Journal of Electroceramics
Publisher
Springer US
Citation
Burbano, Mario, Dario Marrocchelli, and Graeme W. Watson. “Strain Effects on the Ionic Conductivity of Y-Doped Ceria: A Simulation Study.” Journal of Electroceramics 32.1 (2014): 28–36.
Version
Author's final manuscript
Abstract
In this paper we report a computational study of the effects of strain on the conductivity of Y-doped ceria (YDC). This material was chosen as it is of technological interest in the field of Solid Oxide Fuel Cells (SOFCs). The simulations were performed under realistic operational temperatures and strain (𝜖) levels. For bulk and thin film YDC, the results show that tensile strain leads to conductivity enhancements of up to 3.5 × and 1.44 × , respectively. The magnitude of these enhancements is in agreement with recent experimental and computational evidence. In addition, the methods presented herein allowed us to identify enhanced ionic conductivity in the surface regions of YDC slabs and its anisotropic character.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1007/s10832-013-9868-y
