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@ARTICLE{Dashjav:874349,
      author       = {Dashjav, Enkhtsetseg and Gellert, Michael and Yan, Gang and
                      Grüner, Daniel and Kaiser, Nico and Spannenberger, Stefan
                      and Kraleva, Irina and Bermejo, Raul and Gerhards,
                      Marie-Theres and Ma, Qianli and Malzbender, Jürgen and
                      Roling, Bernhard and Tietz, Frank and Guillon, Olivier},
      title        = {{M}icrostructure, ionic conductivity and mechanical
                      properties of tape-cast {L}i1.5{A}l0.5{T}i1.5{P}3{O}12
                      electrolyte sheets},
      journal      = {Journal of the European Ceramic Society},
      volume       = {40},
      number       = {5},
      issn         = {0955-2219},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2020-01382},
      pages        = {1975 - 1982},
      year         = {2020},
      abstract     = {Free-standing Li1.5Al0.5Ti1.5P3O12 electrolyte sheets with
                      a thickness of 50–150 µm were prepared by tape casting
                      followed by sintering at 850–1000 °C in air. While a
                      sintering temperature of 850 °C was too low to achieve
                      appreciable densification and grain growth, a peak relative
                      density of 95 $\%$ was obtained at 920 °C. At higher
                      sintering temperatures, the microstructure changed from a
                      bimodal grain size distribution towards exclusively large
                      grains (> 10 µm), accompanied by a decrease in relative
                      density (down to 86 $\%$ at 1000 °C). In contrast, ionic
                      conductivity increased with increasing sintering
                      temperature, from 0.1 mS/cm at 920 °C to 0.3 mS/cm at 1000
                      °C. Sintering behavior was improved by adding 1.5 $\%$ of
                      amorphous silica to the slurry. In this way, almost full
                      densification (99.8 $\%)$ and an ionic conductivity of 0.2
                      mS/cm was achieved at 920 °C. Mechanical characterization
                      was carried out on the almost fully densified material,
                      yielding elastic modulus and hardness values of 109 and 8.7
                      GPa, respectively. The fracture strength and Weibull modulus
                      were also characterized. The results confirm that
                      densification and reduction of grain size improve the
                      mechanical properties.},
      cin          = {IEK-1 / IEK-2},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-2-20101013},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000518695500022},
      doi          = {10.1016/j.jeurceramsoc.2020.01.017},
      url          = {https://juser.fz-juelich.de/record/874349},
}