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@INPROCEEDINGS{Wolff:996700,
      author       = {Wolff, Michael and Menzler, Norbert H.},
      othercontributors = {Treitz, Jan-Philipp and Lenser, Christian},
      title        = {{W}et powder spraying derived spinel protective coatings
                      for solid oxide cell interconnects},
      reportid     = {FZJ-2023-01129},
      year         = {2023},
      abstract     = {Cr diffusion and Cr2O3 scale formation are widely regarded
                      as one major degradation issue for Cr-containing steel
                      interconnects in solid oxide cells (SOC). Although the
                      application of (Mn,Co)3O4 spinel by atmospheric plasma
                      spraying (APS) has proven as an effective method to improve
                      Cr retention, high processing costs still limit the
                      potential of this approach. In this study, we evaluated wet
                      powder spraying as a fast, scalable and cost-effective
                      alternative to apply protective coatings of
                      Mn1.0Co1.9Fe0.104 (MCF) on Crofer 22H. Deposition of
                      homogeneous coatings have been shown to depend on a complex
                      interplay of surface pre-treatment, slurry composition, wet
                      powder spray process parameters and post-sintering
                      conditions. Defect-free MCF layers with high adhesion
                      strength have been successfully applied by gradual
                      fine-tuning of deposition and sintering parameters.
                      According to microstructural analysis, protective layers
                      remained stable mechanically and chemically with improved Cr
                      retention after thermal treatment for 1000 h at 800 °C.
                      Overall, wet powder spraying shows great potential as a
                      highly efficient and economically viable technique for the
                      application of gas-tight ceramic protective layers in the
                      micrometer range.},
      month         = {Jan},
      date          = {2023-01-22},
      organization  = {47th International Conference and Expo
                       on Advanced Ceramics and Composites,
                       Daytona Beach (USA), 22 Jan 2023 - 27
                       Jan 2023},
      subtyp        = {After Call},
      cin          = {IEK-1},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123) /
                      Verbundvorhaben $SOC-Degradation_2$ ' Teilvorhaben A
                      (03SF0621A) / SOFC - Solid Oxide Fuel Cell (SOFC-20140602)},
      pid          = {G:(DE-HGF)POF4-1231 / G:(BMBF)03SF0621A /
                      G:(DE-Juel1)SOFC-20140602},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/996700},
}