Chemically-induced stress of fuel cell laminate under oxidizing/reducing gradient condition

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Abstract

Fracture conditions were examined by conducting stress analysis, using the finite element method and taking into account the chemically-induced expansion of nonstoichiometric oxide. Based on this stress analysis, it was found that residual stress at fabrication of the fuel cell laminate and thermal stress under high-temperature conditions were small, but stress due to chemically-induced expansion of nonstoichiometric oxide exceeded the fracture stress of the component materials. This showed that stress due to chemically-induced expansion was the main cause of the fracturing observed in this research.

Original languageEnglish
Title of host publicationICCM-17 - 17th International Conference on Composite Materials
PublisherInternational Committee on Composite Materials
Publication statusPublished - 2009

Publication series

NameICCM International Conferences on Composite Materials

Keywords

  • Chemically-induced Expansion
  • Non-stoichiometry
  • Solid Oxide Fuel Cell (SOFC)

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