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@ARTICLE{Emmerich:874251,
      author       = {Emmerich, Thomas and Vaßen, Robert and Aktaa, Jarir},
      title        = {{T}hermal fatigue behavior of functionally graded
                      {W}/{EUROFER}-layer systems using a new test apparatus},
      journal      = {Fusion engineering and design},
      volume       = {154},
      issn         = {0920-3796},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2020-01342},
      pages        = {111550 -},
      year         = {2020},
      abstract     = {In future fusion reactors tungsten coatings shall protect
                      First Wall components, made of reduced activation ferritic
                      martensitic steel, against the plasma, because of
                      tungsten’s favourable thermo-mechanical properties and low
                      sputtering yield. Functionally graded material layers
                      implemented between the coating and the steel substrate,
                      compensate the difference in the coefficient of thermal
                      expansion. By using the vacuum plasma spraying technique
                      several layer systems were successfully produced and tested,
                      among other aspects, in regard to their thermal fatigue
                      behaviour up to 500 thermal cycles in a vacuum furnace.
                      However, higher numbers of thermal cycles are anticipated
                      for future fusion reactors and, therefore, a less time
                      consuming approach for thermal fatigue testing is
                      required.Hence, a new testing apparatus with induction
                      heating and inert gas cooling was built and first thermal
                      fatigue experiments with up to 5000 cycles were carried out
                      on different functionally graded tungsten/steel layers
                      systems. The subsequent investigations of these samples show
                      that the layer systems are stable for the applied number of
                      thermal cycles and their properties are solely determined
                      during their respective coating processes.},
      cin          = {IEK-1},
      ddc          = {530},
      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:000530644300003},
      doi          = {10.1016/j.fusengdes.2020.111550},
      url          = {https://juser.fz-juelich.de/record/874251},
}