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@ARTICLE{Bremm:889814,
      author       = {Bremm, Sophia and Dölling, Sebastian and Becker, Wilfried
                      and Blum, Ludger and Peters, Roland and Malzbender, Jürgen
                      and Stolten, Detlef},
      title        = {{A} methodological contribution to failure prediction of
                      glass ceramics sealings in high-temperature {SOFC} stacks},
      journal      = {Journal of power sources},
      volume       = {507},
      issn         = {0378-7753},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-00427},
      pages        = {230301},
      year         = {2021},
      abstract     = {Solid oxide fuel cells (SOFCs) provide electrical energy
                      through a highly efficient direct transformation of chemical
                      energy stored in fuels. The sealing between the stacked
                      components of the SOFC has to prevent gas leakage towards
                      the environment as well as mixing of fuel gas and oxidant in
                      order to ensure a reliable long-term operability. Hence, the
                      understanding of the sealing loading conditions and the
                      failure assessment plays a major role regarding the
                      improvement of current and future SOFC designs. In the
                      present study, glass ceramics sealing failure is
                      investigated by means of a current SOFC design. For this
                      purpose, the stresses in the sealings are firstly examined
                      by employing a fully parameterized three-dimensional finite
                      element model. On the basis of a canonical example, the
                      underlying physical mechanisms, which are responsible for
                      the occurrence of stresses, are identified and their
                      influence is discussed. Since the initiation of sealing
                      failure is complex and depends on several parameters, a
                      methodology for failure assessment is proposed. In this
                      context, the glass transition temperature is of
                      superordinate importance. Since the material properties
                      differ significantly depending on whether the operating
                      temperature is below or above the glass transition
                      temperature, several competing failure mechanisms must be
                      considered.},
      cin          = {IEK-14 / IEK-2 / IEK-3},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-14-20191129 / I:(DE-Juel1)IEK-2-20101013 /
                      I:(DE-Juel1)IEK-3-20101013},
      pnm          = {135 - Fuel Cells (POF3-135) / 1231 - Electrochemistry for
                      Hydrogen (POF4-123) / 1111 - Effective System Transformation
                      Pathways (POF4-111) / 1112 - Societally Feasible
                      Transformation Pathways (POF4-111) / SOFC - Solid Oxide Fuel
                      Cell (SOFC-20140602)},
      pid          = {G:(DE-HGF)POF3-135 / G:(DE-HGF)POF4-1231 /
                      G:(DE-HGF)POF4-1111 / G:(DE-HGF)POF4-1112 /
                      G:(DE-Juel1)SOFC-20140602},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000685093700006},
      doi          = {10.1016/j.jpowsour.2021.230301},
      url          = {https://juser.fz-juelich.de/record/889814},
}