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@ARTICLE{Abaza:894626,
      author       = {Abaza, Amira and Meille, Sylvain and Nakajo, Arata and
                      Leguillon, Dominique and Hubert, Maxime and Lenser, C. and
                      Laurencin, Jérôme},
      title        = {{F}racture of {P}orous {C}eramics: {A}pplication to the
                      {M}echanical {D}egradation of {S}olid {O}xide {C}ell
                      {D}uring {R}edox {C}ycling},
      journal      = {ECS transactions},
      volume       = {103},
      number       = {1},
      issn         = {1938-6737},
      address      = {Pennington, NJ},
      reportid     = {FZJ-2021-03323},
      pages        = {1151 - 1163},
      year         = {2021},
      abstract     = {A model based on the Phase Field approach has been
                      developed to simulate the local fracture in porous electrode
                      microstructures. The model capacity to predict the crack
                      nucleation and propagation has been studied with theoretical
                      considerations. For the model validation, micro-compression
                      tests have been performed on porous YSZ micro-pillars. As
                      expected, the compressive fracture strength has been found
                      to decrease with the material porosity. Moreover, a
                      transition in fracture mode has been detected from a brittle
                      behavior toward a local damage when increasing the porosity.
                      It has been shown that the model is able to reproduce
                      correctly the experimental results. The validated model has
                      been used to simulate the fracture of the YSZ backbone
                      induced by the Ni re-oxidation in a typical Ni-YSZ cermet.
                      The generation and localization of the micro-cracks have
                      been discussed according to the degree of Ni re-oxidation
                      and the local morphology of the electrode microstructure.},
      cin          = {IEK-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123) /
                      Development of improved anodes in solid oxide fuel cells for
                      conversion of synthesis gas from thermo-chemical
                      gasification of biomass (275388933) / SOFC - Solid Oxide
                      Fuel Cell (SOFC-20140602)},
      pid          = {G:(DE-HGF)POF4-1231 / G:(GEPRIS)275388933 /
                      G:(DE-Juel1)SOFC-20140602},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1149/10301.1151ecst},
      url          = {https://juser.fz-juelich.de/record/894626},
}