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@ARTICLE{Kelly:887831,
      author       = {Kelly, Madeleine N. and Rheinheimer, Wolfgang and Hoffmann,
                      Michael J. and Rohrer, Gregory S.},
      title        = {{A}nti-thermal grain growth in {S}r{T}i{O}3: {C}oupled
                      reduction of the grain boundary energy and grain growth rate
                      constant},
      journal      = {Acta materialia},
      volume       = {149},
      issn         = {1359-6454},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2020-04457},
      pages        = {11 - 18},
      year         = {2018},
      abstract     = {The dihedral angles at grain boundary thermal grooves in
                      SrTiO3 were measured and used to determine the relative
                      grain boundary energy at several temperatures where the
                      grain growth rate constant displays anti-thermal properties
                      (it decreases with increasing temperature). The measurements
                      indicate that at temperatures in the anti-thermal region
                      (1390 °C–1400 °C), the average grain boundary energy
                      is less than at a lower temperature (1350 °C) where grain
                      boundaries move more rapidly. Three-dimensional electron
                      backscatter diffraction was used to measure the geometries
                      of internal triple junctions in a sample where the slow and
                      fast grain boundaries co-exist. Based on the dihedral angles
                      at triple junctions, the ratio of the energies of slow
                      boundaries to fast boundaries is 0.86. The results indicate
                      that at temperatures between 1350 °C and 1425 °C, the
                      higher and lower energy boundaries coexist. The coexistence
                      of the two boundary types in this temperature range is
                      likely because there is a range of grain boundary energies
                      and the temperature at which a boundary transforms from the
                      slow type to the fast type depends on its grain boundary
                      energy.},
      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:000430895000002},
      doi          = {10.1016/j.actamat.2018.02.030},
      url          = {https://juser.fz-juelich.de/record/887831},
}