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@ARTICLE{Deibert:849646,
      author       = {Deibert, Wendelin and Stournari, Vasiliki and Ivanova,
                      Mariya E. and Escolástico, Sonia and Serra, José M. and
                      Malzbender, Jürgen and Beck, Tilmann and Singheiser, Lorenz
                      and Guillon, Olivier and Meulenberg, Wilhelm A.},
      title        = {{E}ffect of microstructure on electrical and mechanical
                      properties of {L}a 5.4 {WO} 12-δ proton conductor},
      journal      = {Journal of the European Ceramic Society},
      volume       = {38},
      number       = {10},
      issn         = {0955-2219},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2018-03787},
      pages        = {3527 - 3538},
      year         = {2018},
      abstract     = {The relationships between microstructural characteristics
                      and electrical as well as mechanical properties of
                      La5.4WO12-δ (LWO54) materials were studied. Polycrystalline
                      LWO54 samples revealed identical transport mechanisms
                      regardless of the sample microstructure. The studied samples
                      show predominately proton conductor behaviour below
                      800 °C and become predominant n-type and oxygen ion
                      conductors above this temperature. The magnitude of the
                      total conductivity is enhanced with larger grain size and
                      lower porosity. Young’s modulus decreased by $20\%$ with
                      increasing temperature up to 1000 °C regardless of grain
                      size and atmosphere. Fracture strength was determined via
                      ring-on-ring bending tests, yielding values that strongly
                      depended on microstructural characteristics and homogeneity
                      of the microstructure. Elevated temperature deformation
                      studies revealed that creep is governed by cation diffusion
                      mechanism.},
      cin          = {IEK-1 / IEK-2},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-2-20101013},
      pnm          = {111 - Efficient and Flexible Power Plants (POF3-111)},
      pid          = {G:(DE-HGF)POF3-111},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000432768900016},
      doi          = {10.1016/j.jeurceramsoc.2018.04.009},
      url          = {https://juser.fz-juelich.de/record/849646},
}