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@ARTICLE{Froitzheim:12255,
      author       = {Froitzheim, J. and Niewolak, L. and Brandner, M. and
                      Singheiser, L. and Quadakkers, W. J.},
      title        = {{A}node {S}ide {D}iffusion {B}arrier {C}oating for {S}olid
                      {O}xide {F}uel {C}ells {I}nterconnects},
      journal      = {Journal of fuel cell science and technology},
      volume       = {7},
      issn         = {1550-624X},
      address      = {New York, NY},
      publisher    = {ASME},
      reportid     = {PreJuSER-12255},
      pages        = {031020-I},
      year         = {2010},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {During the operation of solid oxide fuel cells (SOFCs) the
                      Ni base anode and/or Ni-mesh is in direct contact with the
                      ferritic steel interconnect or the metallic substrate. For
                      assuring long-term stack operation a diffusion barrier layer
                      with high electronic conductivity may be needed to impede
                      interdiffusion between the various components. A
                      pre-oxidation layer on the ferritic steel turned out to be
                      not viable as a barrier layer since a Ni-layer tends to
                      dissociate the oxide scale. Therefore the potential of ceria
                      as a diffusion barrier layer for the anode side of the SOFC
                      was estimated. The barrier properties of a ceria coating
                      between the Ni and the ferritic steel Crofer 22 APU were
                      tested for 1000 h in Ar-4H(2)-2H(2)O at 800 degrees C.
                      Conductivity experiments were performed in the same
                      atmosphere at different temperatures. After long-term
                      exposures no indication of interdiffusion between Ni and
                      ferritic steel could be detected, however, sputtered
                      coatings on ferritic steel substrates showed significantly
                      lower conductivities than bulk ceria samples because of void
                      formation between the ceria and the oxide on the steel
                      surface. The latter could be prevented by an intermediate
                      copper layer, which resulted in overall area specific
                      resistance values lower than 20 m cm(2) after 100 h exposure
                      at 800 degrees C.},
      keywords     = {J (WoSType)},
      cin          = {IEK-2 / JARA-ENERGY},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-2-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {Rationelle Energieumwandlung / SOFC - Solid Oxide Fuel Cell
                      (SOFC-20140602)},
      pid          = {G:(DE-Juel1)FUEK402 / G:(DE-Juel1)SOFC-20140602},
      shelfmark    = {Electrochemistry / Energy $\&$ Fuels},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000275751700020},
      doi          = {10.1115/1.3182731},
      url          = {https://juser.fz-juelich.de/record/12255},
}