| Publication type: | Conference paper |
| Type of review: | Not specified |
| Title: | Residual stress and buckling patterns of yttria-stabilised-zirconia thin films for micro-solid oxide fuel cell membranes |
| Authors: | Evans, Anna Prestat, Michel Tölke, René Gauckler, Ludwig J. Hocker, Thomas Safa, Yasser Briand, Danick Courbat, Jérôme De Rooij, Nico |
| DOI: | 10.1149/1.3701338 |
| Proceedings: | Ionic and mixed conducting ceramics |
| Editors of the parent work: | Mogensen, M. B. Armstrong, T. Gür, T. M. Yokokawa, H. Zhou, X.-D. |
| Volume(Issue): | 8 |
| Page(s): | 475 |
| Pages to: | 479 |
| Conference details: | 221st ECS Meeting, Seattle, Washington, 6-10 May 2012 |
| Issue Date: | 2012 |
| Series: | ECS Transactions |
| Series volume: | 45, 1 |
| Publisher / Ed. Institution: | The Electrochemical Society |
| Publisher / Ed. Institution: | Pennington |
| ISBN: | 978-1-56677-953-1 |
| ISSN: | 1938-6737 |
| Language: | English |
| Subject (DDC): | 621.3: Electrical, communications, control engineering 660: Chemical engineering |
| Abstract: | Free-standing yttria-stabilised-zirconia (YSZ) thin films can be found in today's miniaturised gas sensors and as electrolytes in micro-solid oxide fuel cell membranes. 8 mol.% YSZ thin films prepared by pulsed laser deposition on silicon substrates are investigated by wafer curvature and nanoindentation. The 300nm thin 8YSZ films deposited at 700°C have a compressive stress of -1100±150 MPa and a Young's modulus of 205±20 GPa at 25 °C. The corresponding free-standing 8YSZ membranes are investigated by light microscopy and white light interferometry. The 8YSZ membranes deposited at 700°C have a buckling shape with a C4z-rotational symmetry and buckling amplitude of 6.5μm at 25°C. Numerical simulations of the buckling patterns using the Rayleigh-Ritz-method are in good agreement with the experimental data. These simulated buckling patterns are used to extract the local stress distribution. This is important regarding the application of YSZ membranes in micro-solid oxide fuel cells which must be thermomechanically-stable during device operation. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/1615 |
| Fulltext version: | Published version |
| License (according to publishing contract): | Licence according to publishing contract |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Computational Physics (ICP) |
| Appears in collections: | Publikationen School of Engineering |
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Evans, A., Prestat, M., Tölke, R., Gauckler, L. J., Hocker, T., Safa, Y., Briand, D., Courbat, J., & De Rooij, N. (2012). Residual stress and buckling patterns of yttria-stabilised-zirconia thin films for micro-solid oxide fuel cell membranes [Conference paper]. In M. B. Mogensen, T. Armstrong, T. M. Gür, H. Yokokawa, & X.-D. Zhou (Eds.), Ionic and mixed conducting ceramics (Vol. 8, pp. 475–479). The Electrochemical Society. https://doi.org/10.1149/1.3701338
Evans, A. et al. (2012) ‘Residual stress and buckling patterns of yttria-stabilised-zirconia thin films for micro-solid oxide fuel cell membranes’, in M.B. Mogensen et al. (eds) Ionic and mixed conducting ceramics. Pennington: The Electrochemical Society, pp. 475–479. Available at: https://doi.org/10.1149/1.3701338.
A. Evans et al., “Residual stress and buckling patterns of yttria-stabilised-zirconia thin films for micro-solid oxide fuel cell membranes,” in Ionic and mixed conducting ceramics, 2012, vol. 8, pp. 475–479. doi: 10.1149/1.3701338.
EVANS, Anna, Michel PRESTAT, René TÖLKE, Ludwig J. GAUCKLER, Thomas HOCKER, Yasser SAFA, Danick BRIAND, Jérôme COURBAT und Nico DE ROOIJ, 2012. Residual stress and buckling patterns of yttria-stabilised-zirconia thin films for micro-solid oxide fuel cell membranes. In: M. B. MOGENSEN, T. ARMSTRONG, T. M. GÜR, H. YOKOKAWA und X.-D. ZHOU (Hrsg.), Ionic and mixed conducting ceramics. Conference paper. Pennington: The Electrochemical Society. 2012. S. 475–479. ISBN 978-1-56677-953-1
Evans, Anna, Michel Prestat, René Tölke, Ludwig J. Gauckler, Thomas Hocker, Yasser Safa, Danick Briand, Jérôme Courbat, and Nico De Rooij. 2012. “Residual Stress and Buckling Patterns of Yttria-Stabilised-Zirconia Thin Films for Micro-Solid Oxide Fuel Cell Membranes.” Conference paper. In Ionic and Mixed Conducting Ceramics, edited by M. B. Mogensen, T. Armstrong, T. M. Gür, H. Yokokawa, and X.-D. Zhou, 8:475–79. Pennington: The Electrochemical Society. https://doi.org/10.1149/1.3701338.
Evans, Anna, et al. “Residual Stress and Buckling Patterns of Yttria-Stabilised-Zirconia Thin Films for Micro-Solid Oxide Fuel Cell Membranes.” Ionic and Mixed Conducting Ceramics, edited by M. B. Mogensen et al., vol. 8, The Electrochemical Society, 2012, pp. 475–79, https://doi.org/10.1149/1.3701338.
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