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@ARTICLE{Vikrant:887818,
      author       = {Vikrant, K. S. N. and Rheinheimer, Wolfgang and Sternlicht,
                      Hadas and Bäurer, Michael and García, R. Edwin},
      title        = {{E}lectrochemically-driven abnormal grain growth in ionic
                      ceramics},
      journal      = {Acta materialia},
      volume       = {200},
      issn         = {1359-6454},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2020-04444},
      pages        = {727 - 734},
      year         = {2020},
      abstract     = {A combined theoretical and experimental analysis was
                      performed to understand the effects of extrinsic ionic
                      species and point defects on the microstructural evolution
                      of ionic polycrystalline ceramics. The model naturally
                      incorporates the effects of drag on grain boundary motion as
                      imposed by the interfacially accumulated charged defects for
                      Fe doped SrTiO3. Two moving grain boundary types, i.e.,
                      highly mobile and immobile interfaces result in abnormal
                      grain growth. Fast moving grain boundaries leave a residual
                      charge network behind in the interior of the grains in the
                      form of bands of which in turn electrostatically attract
                      oxygen vacancies, thus enhancing the local ionic
                      conductivity of the polycrystal. Three grain size
                      populations are statistically identified: (a) a normal grain
                      population, as one would expect would happen in classical
                      systems; (b) an abnormal, large grain population, which
                      corresponds to those grains whose spatial extent is
                      statistically greater than the average; and (c) an
                      electrochemically persistent small grain size population
                      that is stabilized by the grain boundary electrical energy.
                      The study herein sets the stage to assess the effects of
                      externally applied fields such as temperature,
                      electromagnetic fields, stresses, and chemical stimuli to
                      develop textured, oriented microstructures as tailored for a
                      wide range of applications.},
      cin          = {IEK-1},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {899 - ohne Topic (POF3-899)},
      pid          = {G:(DE-HGF)POF3-899},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000580631600063},
      doi          = {10.1016/j.actamat.2020.08.027},
      url          = {https://juser.fz-juelich.de/record/887818},
}