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@ARTICLE{Bakan:907943,
      author       = {Bakan, Emine and Vaßen, Robert},
      title        = {{O}xidation kinetics of atmospheric plasma sprayed
                      environmental barrier coatings},
      journal      = {Journal of the European Ceramic Society},
      volume       = {42},
      number       = {12},
      issn         = {0955-2219},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2022-02285},
      pages        = {5122-5128},
      year         = {2022},
      abstract     = {Three different Si/Yb-silicate environmental barrier
                      coating systems (EBCs) were atmospheric plasma sprayed using
                      various spray currents (275, 325, 375 A) for Yb-silicate
                      deposition. The EBCs were thermally cycled between room
                      temperature and 1300 °C up to 1000 h in air. Additionally,
                      bare Si coatings were tested under isothermal and thermal
                      cycling conditions in the as-sprayed state and after
                      polishing at 1300 °C in air. Parabolic oxidation kinetics
                      were observed and oxidation protection provided by
                      Yb-silicate was found to be influenced by the spray
                      conditions, i.e. only at 325 A, Yb-silicate was effectively
                      protecting the bond coat. The controlling mechanism was
                      attributed to densification in the Yb-silicate layer during
                      thermal cycling, which was quantified via image analysis.
                      The surface finish of the Si coating was also found to be
                      influencing the oxidation rate. The TGO was thinner and less
                      cracked on polished APS Si coating in comparison with the
                      as-sprayed Si coating surface.},
      cin          = {IEK-1},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {1241 - Gas turbines (POF4-124)},
      pid          = {G:(DE-HGF)POF4-1241},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000812267500003},
      doi          = {10.1016/j.jeurceramsoc.2022.05.003},
      url          = {https://juser.fz-juelich.de/record/907943},
}