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@ARTICLE{Berger:845009,
      author       = {Berger, Lutz-Michael and Sempf, Kerstin and Sohn, Yoo Jung
                      and Vaßen, Robert},
      title        = {{I}nfluence of {F}eedstock {P}owder {M}odification by
                      {H}eat {T}reatments on the {P}roperties of {APS}-{S}prayed
                      ${A}l2{O}3-40\%$ {T}i{O}2 {C}oatings27},
      journal      = {Journal of thermal spray technology},
      volume       = {27},
      number       = {4},
      issn         = {1544-1016},
      address      = {Boston, Mass.},
      publisher    = {Springer},
      reportid     = {FZJ-2018-02338},
      pages        = {654 - 666},
      year         = {2018},
      abstract     = {The formation and decomposition of aluminum titanate
                      (Al2TiO5, tialite) in feedstock powders and coatings of the
                      binary Al2O3-TiO2 system are so far poorly understood. A
                      commercial fused and crushed $Al2O3-40\%TiO2$ powder was
                      selected as the feedstock for the experimental series
                      presented in this paper, as the composition is close to that
                      of Al2TiO5. Part of that powder was heat-treated in air at
                      1150 and 1500 °C in order to modify the phase composition,
                      while not influencing the particle size distribution and
                      processability. The powders were analyzed by thermal
                      analysis, XRD and FESEM including EDS of metallographically
                      prepared cross sections. Only a maximum content of about 45
                      $wt.\%$ Al2TiO5 was possible to obtain with the heat
                      treatment at 1500 °C due to inhomogeneous distribution of
                      Al and Ti in the original powder. Coatings were prepared by
                      plasma spraying using a TriplexPro-210 (Oerlikon Metco) with
                      Ar-H2 and Ar-He plasma gas mixtures at plasma power levels
                      of 41 and 48 kW. Coatings were studied by XRD, SEM including
                      EDS linescans of metallographically prepared cross sections,
                      and microhardness HV1. With the exception of the powder
                      heat-treated at 1500 °C an Al2TiO5-Ti3O5
                      (tialite–anosovite) solid solution Al2−xTi1+xO5 instead
                      of Al2TiO5 existed in the initial powder and the coatings.},
      cin          = {IEK-1},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000430378200009},
      doi          = {10.1007/s11666-018-0716-0},
      url          = {https://juser.fz-juelich.de/record/845009},
}