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@INPROCEEDINGS{Mack:279915,
      author       = {Mack, Daniel Emil and Jarligo, Maria Ophelia and Vassen,
                      Robert and Guillon, Olivier},
      title        = {{D}egradation and {F}ailure {M}odes of {A}dvanced
                      {M}aterials in {CMAS} {B}urner {R}ig {T}esting},
      reportid     = {FZJ-2015-07789},
      year         = {2015},
      abstract     = {Facing the demands on efficiency and operational
                      flexibility of gas turbines advanced materials solutions
                      allowing for use at increased turbine inlet temperatures are
                      being developed with considerable progress. In addition to
                      the extreme thermomechanical loads in the hottest part of
                      the gas turbines also degradation of ceramic thermal barrier
                      coatings (TBCs) due to calcium–magnesium–aluminosilicate
                      (CMAS) glassy deposits from various sources has become a
                      persistent challenge since some years. Meanwhile the
                      understanding of the mechanism of CMAS induced degradation
                      of TBC as well as approaches for mitigating CMAS attack by
                      means of advanced TBC compositions have grown remarkably.
                      However, most of the reported results have been obtained
                      from isothermal lab testing or evaluation of ex-service
                      components either.In this study a burner rig facility has
                      been used for the evaluation of advanced TBC performance,
                      where a thermal gradient is applied across the TBC, with
                      simultaneous injection of CMAS to simulate the conditions
                      closer to actual service in an engine. Tests have been
                      performed on TBC systems comprising top coats from advanced
                      materials as pyrochlores, garnets, hexaaluminates, spinels,
                      or alumina. Characterization after test has been done by
                      means of SEM, EDX and XRD. Major impacts of chemical
                      degradation and mitigation mechanism on thermal gradient
                      cycling lifetime are reviewed.},
      month         = {Aug},
      date          = {2015-08-30},
      organization  = {The 11th Pacific Rim Conference of
                       Ceramic Societies, Jeju (Korea), 30 Aug
                       2015 - 4 Sep 2015},
      subtyp        = {Invited},
      cin          = {IEK-1 / JARA-ENERGY},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/279915},
}