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@ARTICLE{Lobe:1017171,
      author       = {Lobe, Sandra and Bauer, Alexander and Sebold, Doris and
                      Wettengl, Nadine and Fattakhova-Rohlfing, Dina and
                      Uhlenbruck, Sven},
      title        = {{S}intering of {L}i-garnets: {I}mpact of {A}l-incorporation
                      and powder-bed composition on microstructure and ionic
                      conductivity},
      journal      = {Open ceramics},
      volume       = {10},
      issn         = {2666-5395},
      address      = {Amsterdam},
      publisher    = {Elsevier},
      reportid     = {FZJ-2023-03984},
      pages        = {100268 -},
      year         = {2022},
      abstract     = {Garnet-structured Li-ion conductors are promising
                      candidates as electrolytes for all-solid-state batteries.
                      However, sintering of these materials is still a challenge,
                      due to Li-loss accompanied by decomposition at elevated
                      temperatures. In this study, Li5La3Ta2O12, a garnet material
                      with reduced Li-content, was used as a model material to
                      investigate the impact of the Li content in powder beds as
                      well as the presence of Al either in the green bodies or in
                      the powder beds on the properties of the resulting sintered
                      materials. The resulting relative densities were increased
                      by sintering in a Li-rich powder bed compared to a powder
                      bed with identical stoichiometry. Furthermore, Al either in
                      the source material or in the powder bed was shown to
                      support densification, even if it is not incorporated in the
                      structure. The highest ionic conductivity was 3.4 × 10-5 S
                      cm-1 at 30 °C for Li5La3Ta2O12, which was sintered in a
                      Li6.54Al0.02La3Zr1.6Ta0.4O12 powder bed.},
      cin          = {IEK-1 / IEK-9},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-9-20110218},
      pnm          = {1221 - Fundamentals and Materials (POF4-122) /
                      FestBatt-Oxide - Materialplattform 'Oxide' im Rahmen des
                      Kompetenzclusters für Festkörperbatterien (13XP0173A)},
      pid          = {G:(DE-HGF)POF4-1221 / G:(BMBF)13XP0173A},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001108648700005},
      doi          = {10.1016/j.oceram.2022.100268},
      url          = {https://juser.fz-juelich.de/record/1017171},
}