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Flash Sintering of Anode–Electrolyte Multilayers for SOFC Applications

Authors

  • John S. C. Francis,

    1. Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, Colorado
    2. SOFCPOWER SpA, Mezzolombardo-Trento, V.1e Trento, Italy
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  • Marco Cologna,

    1. Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, Colorado
    2. SOFCPOWER SpA, Mezzolombardo-Trento, V.1e Trento, Italy
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  • Dario Montinaro,

  • Rishi Raj

    Corresponding author
    1. SOFCPOWER SpA, Mezzolombardo-Trento, V.1e Trento, Italy
    • Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, Colorado
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Author to whom correspondence should be addressed. e-mail: rishi.raj@colorado.edu

Abstract

We show that multilayer green tapes constituted from sandwiched layers of NiO–zirconia anode and cubic zirconia electrolyte can be sintered below 1000°C in a few seconds under the influence of a DC electric field. The sintering yields a dense electrolyte layer with minor closed porosity, and an anode layer with open porosity, and, most importantly, a multilayer that is largely devoid of defects and delamination.

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