Strength of anode-supported solid oxide fuel cells

A. Faes (Corresponding Author), H.L. Frandsen, A. Kaiser, Mikko Pihlatie

    Research output: Contribution to journalArticleScientificpeer-review

    17 Citations (Scopus)

    Abstract

    Nickel oxide and yttria doped zirconia composite strength is crucial for anode‐supported solid oxide fuel cells, especially during transient operation, but also for the initial stacking process, where cell curvature after sintering can cause problems. This work first compares tensile and ball‐on‐ring strength measurements of as‐sintered anodes support. Secondly, the strength of anode support sintered alone is compared to the strength of a co‐sintered anode support with anode and electrolyte layers. Finally, the orientation of the specimens to the bending axis of a co‐sintered half‐cell is investigated. Even though the electrolyte is to the tensile side, it is found that the anode support fails due to the thermo‐mechanical residual stresses.
    Original languageEnglish
    Pages (from-to)682-689
    Number of pages8
    JournalFuel Cells
    Volume11
    Issue number5
    DOIs
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Solid oxide fuel cells (SOFC)
    Anodes
    Electrolytes
    Nickel oxide
    Yttrium oxide
    Zirconia
    Residual stresses
    Sintering
    Composite materials

    Keywords

    • Ball-on-ring test
    • ceramic strength
    • half-cells
    • NiO and Zirconia anode-supported fuel cells
    • SOFC
    • tensile test

    Cite this

    Faes, A. ; Frandsen, H.L. ; Kaiser, A. ; Pihlatie, Mikko. / Strength of anode-supported solid oxide fuel cells. In: Fuel Cells. 2011 ; Vol. 11, No. 5. pp. 682-689.
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    Strength of anode-supported solid oxide fuel cells. / Faes, A. (Corresponding Author); Frandsen, H.L.; Kaiser, A.; Pihlatie, Mikko.

    In: Fuel Cells, Vol. 11, No. 5, 2011, p. 682-689.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Strength of anode-supported solid oxide fuel cells

    AU - Faes, A.

    AU - Frandsen, H.L.

    AU - Kaiser, A.

    AU - Pihlatie, Mikko

    PY - 2011

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    N2 - Nickel oxide and yttria doped zirconia composite strength is crucial for anode‐supported solid oxide fuel cells, especially during transient operation, but also for the initial stacking process, where cell curvature after sintering can cause problems. This work first compares tensile and ball‐on‐ring strength measurements of as‐sintered anodes support. Secondly, the strength of anode support sintered alone is compared to the strength of a co‐sintered anode support with anode and electrolyte layers. Finally, the orientation of the specimens to the bending axis of a co‐sintered half‐cell is investigated. Even though the electrolyte is to the tensile side, it is found that the anode support fails due to the thermo‐mechanical residual stresses.

    AB - Nickel oxide and yttria doped zirconia composite strength is crucial for anode‐supported solid oxide fuel cells, especially during transient operation, but also for the initial stacking process, where cell curvature after sintering can cause problems. This work first compares tensile and ball‐on‐ring strength measurements of as‐sintered anodes support. Secondly, the strength of anode support sintered alone is compared to the strength of a co‐sintered anode support with anode and electrolyte layers. Finally, the orientation of the specimens to the bending axis of a co‐sintered half‐cell is investigated. Even though the electrolyte is to the tensile side, it is found that the anode support fails due to the thermo‐mechanical residual stresses.

    KW - Ball-on-ring test

    KW - ceramic strength

    KW - half-cells

    KW - NiO and Zirconia anode-supported fuel cells

    KW - SOFC

    KW - tensile test

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