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@ARTICLE{HTZER:887837,
      author       = {HÖTZER, Johannes and REHN, Veronika and RHEINHEIMER,
                      Wolfgang and HOFFMANN, Michael J. and NESTLER, Britta},
      title        = {{P}hase-field study of pore-grain boundary interaction},
      journal      = {Journal of the Ceramic Society of Japan},
      volume       = {124},
      number       = {4},
      issn         = {1348-6535},
      address      = {Tokyo},
      publisher    = {Soc.},
      reportid     = {FZJ-2020-04463},
      pages        = {329 - 339},
      year         = {2016},
      abstract     = {During final stage sintering, a complex interplay of
                      densification and grain growth dominates microstructural
                      evolution. Grain growth starts, when pore drag effects
                      become less important due to pore shrinkage. This grain
                      growth then decreases the driving force available for
                      sintering. Accordingly, the interplay of pores and grain
                      boundaries needs to be considered in detail. A phase-field
                      model was extended to treat pore dynamics under
                      consideration of pressure stability. To study pore
                      attachment and detachment at moving interfaces, an idealized
                      hexagonal microstructure with a constant driving force
                      relationship for pore migration is constructed.
                      Additionally, realistic polycrystalline microstructures were
                      used. The model is in good agreement with experiments and
                      analytic equations. Three different cases were observed in
                      the realistic microstructure: pore attachment at the moving
                      interface, partial and total pore detachment. However, in
                      the partial case, the initial location of pores was found to
                      be important: pores tend to migrate from quadruple junctions
                      over triple junctions to grain boundary planes, where they
                      eventually detach. This results in a variation of pore
                      detachment, which is not captured in analytic equations.
                      Therefore large simulation setups are required to reflect
                      the impact of initial pore location on pore drag effects.},
      cin          = {IEK-1},
      ddc          = {660},
      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:000379610100010},
      doi          = {10.2109/jcersj2.15266},
      url          = {https://juser.fz-juelich.de/record/887837},
}