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@ARTICLE{Rheinheimer:887813,
      author       = {Rheinheimer, Wolfgang and Blendell, John E. and Handwerker,
                      Carol A.},
      title        = {{E}quilibrium and kinetic shapes of grains in polycrystals},
      journal      = {Acta materialia},
      volume       = {191},
      issn         = {1359-6454},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2020-04439},
      pages        = {101 - 110},
      year         = {2020},
      abstract     = {The equilibrium crystal shape is a convex shape bound by
                      the lowest energy interfaces. In many polycrystalline
                      microstructures created by grain growth, the observed
                      distribution of grain boundary planes appears to be
                      dominated at low driving forces (after long grain growth
                      times) by the planes present in the equilibrium crystal
                      shape. However, at earlier stages of grain growth, it is
                      expected that kinetic effects will play an important role in
                      grain boundary motion and morphology. Analogous to the
                      equilibrium crystal shape, the kinetic crystal shape of seed
                      crystals growing from a liquid at higher supersaturations is
                      bound by the slowest growing orientations. This study
                      presents an equivalent construction for grain boundaries in
                      polycrystals and uses it to determine the kinetic crystal
                      shape for strontium titanate as a function of temperature.
                      Relative grain boundary mobilities for strontium titanate
                      for the low energy crystallographic orientations from seeded
                      polycrystal experiments are used to calculate the kinetic
                      crystal shapes as a function of temperature and annealing
                      atmosphere. The kinetic crystal shapes are then compared to
                      the morphologies and orientations of the interfaces of the
                      growing seed crystals, and to the equilibrium crystal
                      shapes, as wel},
      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:000533619700009},
      doi          = {10.1016/j.actamat.2020.03.055},
      url          = {https://juser.fz-juelich.de/record/887813},
}