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@INPROCEEDINGS{Sick:843619,
      author       = {Sick, Kathrin and Grigorev, Nikita and Menzler, Norbert H.
                      and Guillon, Olivier},
      title        = {{D}evelopment of cathode contacting for {SOFC} stacks},
      reportid     = {FZJ-2018-01201},
      year         = {2018},
      abstract     = {In SOFC stacks the electrical contact between the ceramic
                      cathode layer and the metallic interconnector (IC) has to be
                      adjusted carefully to minimize the contact resistance and
                      slow down degradation mechanisms. In JÜLICH, ICs made of
                      Crofer22APU are coated with a MnCo1.9Fe0.1O4 spinel (MCF),
                      applied by atmospheric plasma spraying (APS), which
                      successfully prevents the diffusion of volatile Cr species
                      from the steel into the cell. Materials for the cathode
                      contact layer have to be sufficiently good electronic
                      conductors, stable in oxidizing atmosphere, chemically
                      stable and compatible with the adjacent layers, and show a
                      thermal expansion behavior similar to MCF and the cathode
                      material, i. e. La0.58Sr0.4Co0.2Fe0.8O3-x (LSCF).To obtain
                      an optimal contact layer, different aspects such as material
                      properties, microstructure, and processing have to be
                      considered. Here we compare various materials regarding
                      their electrical conductivity and compatibility with each
                      other and discuss different processing routes for the
                      application of the cathode contact layer. DC conductivity
                      measurements and scanning electron microscopy (SEM) imaging
                      give information on the correlation of material properties
                      and microstructure. We conclude that an LSCF contact layer
                      with coarse porosity on top of the fine structured LSCF
                      cathode is the most suitable contacting for JÜLICH SOFC
                      stacks.},
      month         = {Jan},
      date          = {2018-01-21},
      organization  = {42nd International Conference and Expo
                       on Advanced Ceramics and Composites,
                       Daytona Beach, Florida (USA), 21 Jan
                       2018 - 26 Jan 2018},
      subtyp        = {After Call},
      cin          = {IEK-1},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {135 - Fuel Cells (POF3-135) / SOFC - Solid Oxide Fuel Cell
                      (SOFC-20140602)},
      pid          = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)SOFC-20140602},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/843619},
}