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@ARTICLE{GonzalezJulian:867890,
      author       = {Gonzalez‐Julian, Jesus and Mauer, Georg and Sebold, Doris
                      and Mack, Daniel E. and Vassen, Robert},
      title        = {{C}r 2 {A}l{C} {MAX} phase as bond coat for thermal barrier
                      coatings: {P}rocessing, testing under thermal gradient
                      loading, and future challenges},
      journal      = {Journal of the American Ceramic Society},
      volume       = {103},
      number       = {4},
      issn         = {1551-2916},
      address      = {Westerville, Ohio},
      publisher    = {Soc.},
      reportid     = {FZJ-2019-06492},
      pages        = {2362-2375},
      year         = {2020},
      abstract     = {Cr$_2$AlC layers with thickness up to 100 µm were
                      deposited by high‐velocity‐atmospheric plasma spray
                      (HV‐APS) on Inconel 738 substrates to analyze the
                      potential of MAX phases as bond coat in thermal barrier
                      coating systems (TBCs). The deposited Cr$_2$AlC layers
                      showed high purity with theoretical densities up to 93\%,
                      although some secondary phases were detected after the
                      deposition process. On top of this MAX phase layer, a porous
                      yttria‐stabilized zirconia (YSZ) was deposited by
                      atmospheric plasma spraying. The system was tested under
                      realistic thermal loading conditions using a burner rig
                      facility, achieving surface and substrate temperatures of
                      1400°C and 1050°C, respectively. The system failed after
                      745 cycles mainly for three reasons: (i) open porosity of
                      the bond coat layer, (ii) oxidation of secondary phases, and
                      (iii) inter‐diffusion. Nevertheless, these results show a
                      high potential of Cr$_2$AlC and other Al‐based MAX phases
                      as bond coat material for high‐temperature applications.
                      Furthermore, future challenges to transfer MAX phases as
                      eventual bond coat or protective layer are discussed.},
      cin          = {IEK-1},
      ddc          = {660},
      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:000501902800001},
      doi          = {10.1111/jace.16935},
      url          = {https://juser.fz-juelich.de/record/867890},
}