Shearing, PR;
Bradley, RS;
Gelb, J;
Tariq, F;
Withers, PJ;
Brandon, NP;
(2012)
Exploring microstructural changes associated with oxidation in Ni-YSZ SOFC electrodes using high resolution X-ray computed tomography.
Solid State Ionics
, 216
69 - 72.
10.1016/j.ssi.2011.10.015.
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Abstract
State of the art solid oxide fuel cell (SOFC) anodes are typically Ni based, one of the primary drawbacks of these electrodes is their significant dimensional change upon oxidation. As commercial SOFCs may typically be expected to undergo numerous redox cycles in their operating lifetime, it is important to understand the associated microstructural degradation process. Here we present a methodology for the use of synchrotron based X-ray nano-computed tomography to explore the step-wise oxidation of the Ni phase in a Ni–YSZ composite material. This non-destructive technique demonstrates the potential to track microstructural evolution on a grain-by-grain basis in three dimensions.
| Type: | Article |
|---|---|
| Title: | Exploring microstructural changes associated with oxidation in Ni-YSZ SOFC electrodes using high resolution X-ray computed tomography |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.ssi.2011.10.015 |
| Publisher version: | http://dx.doi.org/10.1016/j.ssi.2011.10.015 |
| Language: | English |
| Additional information: | This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| Keywords: | SOFC microstructure, Redox cycling, X-ray nano-CT, 4D tomography |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1370739 |
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