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@ARTICLE{Zhang:255662,
      author       = {Zhang, Jizu and Malzbender, Jürgen},
      title        = {{M}echanical {C}haracterization of {M}icro- and
                      {N}ano-{P}orous {A}lumina},
      journal      = {Ceramics international},
      volume       = {41},
      number       = {9},
      issn         = {0272-8842},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2015-05795},
      pages        = {10725-10729},
      year         = {2015},
      abstract     = {Advanced membrane concepts are based on thin layers that
                      require a mechanically robust porous substrate material.
                      Aiming at the use in pre-combustion systems, alumina
                      substrate with different pore sizes were characterized with
                      respect to their mechanical properties. Elastic moduli and
                      fracture stresses were assessed using ring-on-ring bending
                      tests. Furthermore, elastic moduli were compared to data
                      obtained from indentation tests. Although porosity of the
                      micro- and nano-porous materials were equal, elastic moduli
                      and fracture stress values revealed significant differences,
                      indicating that based on mechanical considerations the
                      nano-porous material is far superior, although initial
                      permeation test indicate difficulties in using it as porous
                      substrate. Elastic moduli showed good agreement with a model
                      based on the load-bearing contact area. Microstructural
                      investigations supported that the higher strength of the
                      nano-porous material is a result of a larger contact area
                      between grains.},
      cin          = {IEK-2},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IEK-2-20101013},
      pnm          = {111 - Efficient and Flexible Power Plants (POF3-111) /
                      HITEC - Helmholtz Interdisciplinary Doctoral Training in
                      Energy and Climate Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-111 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000359165500049},
      doi          = {10.1016/j.ceramint.2015.05.007},
      url          = {https://juser.fz-juelich.de/record/255662},
}