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@ARTICLE{OliveiraSilva:856511,
      author       = {Oliveira Silva, R. and Malzbender, J. and Schulze-Küppers,
                      F. and Baumann, S. and Krüger, M. and Guillon, O.},
      title        = {{C}reep {B}ehaviour of {D}ense and {P}orous
                      {S}r{T}i0.75{F}e0.25{O}3-δ for {O}xygen {T}ransport
                      {M}embranes and {S}ubstrates},
      journal      = {Journal of the European Ceramic Society},
      volume       = {38},
      number       = {15},
      issn         = {0955-2219},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2018-05898},
      pages        = {5067 - 5073},
      year         = {2018},
      abstract     = {Considering the challenging conditions imposed by
                      application of membranes in an asymmetric design, in
                      particular creep resistance of the substrate material is an
                      important parameter for the stability in long-term
                      operation. As promising material, in terms of chemical
                      stability, the perovskite SrTi0.75Fe0.25O3-δ has been
                      identified in previous works. Porous supports with different
                      microstructures have been produced using different
                      manufacturing methods and compared to the material in its
                      fully dense state regarding creep behaviour. The creep
                      deformation of pressed, porous tape-cast and freeze-dried
                      SrTi0.75Fe0.25O3-δ specimens has been investigated in the
                      application relevant temperature range of 850–1000 °C
                      under compressive stresses of 15, 30 and 45 MPa. A global
                      fitting method considering all experimental data was used to
                      derive stress exponent and activation energy of
                      SrTi0.75Fe0.25O3-δ, which are 2.9 ± 0.4 and
                      402 ± 25 kJ/mol, respectively. Thus, it is suggested
                      that the mechanism controlling creep is mainly related to
                      dislocation climb/glide.},
      cin          = {IEK-1 / IEK-2 / JARA-ENERGY},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-2-20101013 /
                      $I:(DE-82)080011_20140620$},
      pnm          = {111 - Efficient and Flexible Power Plants (POF3-111)},
      pid          = {G:(DE-HGF)POF3-111},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000444664300031},
      doi          = {10.1016/j.jeurceramsoc.2018.07.030},
      url          = {https://juser.fz-juelich.de/record/856511},
}