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@ARTICLE{Pecanac:818367,
      author       = {Pecanac, G. and Wei, Jianping and Malzbender, Jürgen},
      title        = {{F}racture {T}oughness of {SOFC} {A}node {S}ubsrates
                      {D}etermined by {D}ouble-{T}orsion {T}esting},
      journal      = {Journal of power sources},
      volume       = {327},
      issn         = {0378-7753},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2016-04828},
      pages        = {629-637},
      year         = {2016},
      abstract     = {Planar solid oxide fuel cell anode substrates are exposed
                      to high mechanical loads during assembly, start-up,
                      steady-state operation and thermal cycling. Hence,
                      characterization of mechanical stability of anode substrates
                      under different oxidation states and at relevant
                      temperatures is essential to warrant a reliable operation of
                      solid oxide fuel cells. As a basis for mechanical assessment
                      of brittle supports, two most common anode substrate
                      material variants, NiO-3YSZ and NiO-8YSZ, were analyzed in
                      this study with respect to their fracture toughness at room
                      temperature and at a typical stack operation temperature of
                      800 °C. The study considered both, oxidized and reduced
                      materials' states, where also an outlook is given on the
                      behavior of the re-oxidized state that might be induced by
                      malfunctions of sealants or other functional components.
                      Aiming at the improvement of material's production,
                      different types of warm pressed and tape cast NiO-8YSZ
                      substrates were characterized in oxidized and reduced
                      states. Overall, the results confirmed superior fracture
                      toughness of 3YSZ compared to 8YSZ based composites in the
                      oxidized state, whereas in the reduced state 3YSZ based
                      composites showed similar fracture toughness at room
                      temperature, but a higher value at 800 °C compared to 8YSZ
                      based composites. Complementary microstructural analysis
                      aided the interpretation of mechanical characterization.},
      cin          = {IEK-2},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-2-20101013},
      pnm          = {135 - Fuel Cells (POF3-135) / HITEC - Helmholtz
                      Interdisciplinary Doctoral Training in Energy and Climate
                      Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000383003600070},
      doi          = {10.1016/j.jpowsour.2016.07.103},
      url          = {https://juser.fz-juelich.de/record/818367},
}