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@ARTICLE{VanGestel:19211,
      author       = {Van Gestel, T. and Sebold, D. and Buchkremer, H.P. and
                      Stöver, D.},
      title        = {{A}ssembly of 8{YSZ} nanoparticles into gas-tight 1-2 µm
                      thick 8{YSZ} electrolyte layers using wet coating methods},
      journal      = {Journal of the European Ceramic Society},
      volume       = {32},
      issn         = {0955-2219},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-19211},
      pages        = {9 - 26},
      year         = {2012},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The application of a thin film electrolyte layer with a
                      thickness in the micrometer range could greatly improve
                      current solid oxide fuel cells (SOFCs) in terms of operating
                      temperature and power output. Since the achievable minimal
                      layer thickness with conventional powder coating methods is
                      limited to similar to 5 mu m, a variety of thin film methods
                      have been studied, but results on regular large-scale anode
                      substrates are still lacking in the literature. In this
                      paper, a wet coating process is presented for fabricating
                      gas-tight 1-2 mu m thick 8YSZ electrolyte layers on a
                      regular NiO/8YSZ substrate, with a rough surface, a high
                      porosity and a large pore size. These layers were deposited
                      in a similar way as conventional suspension based layers,
                      but the essential difference includes the use of coating
                      liquids (nano-dispersion, sol) with a considerably smaller
                      particle size (85 nm, 60 nm, 35 nm, 6 nm). Successful
                      deposition of such layers was accomplished by means of an
                      innovative coating process, which involves the preparation
                      of a hybrid polyvinyl alcohol/8YSZ membrane by dip-coating
                      or spin-coating and subsequently burning out the polymer
                      part at 500 degrees C. Results from He leak tests confirmed
                      that the sintered layers posses a very low number of defects
                      and with values in the range 10(-4)-10(-6) (hPa dm(3))/(s
                      cm(2)) the gas-tightness of the thin film layers is
                      satisfactory for fuel cell operation. Moreover, preliminary
                      results have also indicated a potential reduction of the
                      sintering temperature from 1400 degrees C to the range
                      1200-1300 degrees C, using the presented coating process.
                      (C) 2011 Elsevier Ltd. All rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {IEK-1},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {Rationelle Energieumwandlung / SOFC - Solid Oxide Fuel Cell
                      (SOFC-20140602)},
      pid          = {G:(DE-Juel1)FUEK402 / G:(DE-Juel1)SOFC-20140602},
      shelfmark    = {Materials Science, Ceramics},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000297451400002},
      doi          = {10.1016/j.jeurceramsoc.2011.07.012},
      url          = {https://juser.fz-juelich.de/record/19211},
}