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Evolution of the residual stress in solid oxide fuel cell during creep

Evolution of the residual stress in solid oxide fuel cell during creep The evolutions of stress in the multilayer structure of solid oxide fuel cell (SOFC) working under high temperature are calculated by an analytical model. A finite element model is established to validate the results of the present model. The results show that, the present model can be used to analyze the stress relaxation of the SOFC during creep, the stresses both in anode and electrolyte drop dramatically at the first time, but the stress in cathode is first increased and then decreased. The stress relaxation rates of the anode, electrolyte, and cathode of SOFC are 97.87%, 94.91%, and 57.36%, respectively. The creep behavior of electrolyte has little effect on the stress redistribution of the single cell, while anode as well as cathode plays an important role in the evolution of the residual stress and curvature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the Australian Ceramic Society Springer Journals

Evolution of the residual stress in solid oxide fuel cell during creep

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Australian Ceramic Society
Subject
Materials Science; Ceramics, Glass, Composites, Natural Materials; Materials Engineering; Inorganic Chemistry
ISSN
2510-1560
eISSN
2510-1579
DOI
10.1007/s41779-018-0277-1
Publisher site
See Article on Publisher Site

Abstract

The evolutions of stress in the multilayer structure of solid oxide fuel cell (SOFC) working under high temperature are calculated by an analytical model. A finite element model is established to validate the results of the present model. The results show that, the present model can be used to analyze the stress relaxation of the SOFC during creep, the stresses both in anode and electrolyte drop dramatically at the first time, but the stress in cathode is first increased and then decreased. The stress relaxation rates of the anode, electrolyte, and cathode of SOFC are 97.87%, 94.91%, and 57.36%, respectively. The creep behavior of electrolyte has little effect on the stress redistribution of the single cell, while anode as well as cathode plays an important role in the evolution of the residual stress and curvature.

Journal

Journal of the Australian Ceramic SocietySpringer Journals

Published: Oct 28, 2018

References