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@ARTICLE{Richou:840449,
      author       = {Richou, M. and Gallay, F. and Böswirth, B. and Chu, I. and
                      Lenci, M. and Quet, A. and Greuner, H. and Kermouche, G. and
                      Meillot, E. and Pintsuk, G. and Visca, E. and You, J. H. and
                      Loewenhoff, Thorsten},
      title        = {{R}ealization of {H}igh {H}eat {F}lux {T}ungsten
                      {M}onoblock {T}ype {T}arget {W}ith {G}raded {I}nterlayer for
                      {A}pplication to {DEMO} {D}ivertor},
      journal      = {Physica scripta},
      volume       = {T170},
      issn         = {1402-4896},
      address      = {Bristol},
      publisher    = {IoP Publ.},
      reportid     = {FZJ-2017-07965},
      pages        = {014022 -},
      year         = {2017},
      abstract     = {The divertor is the key in-vessel plasma-facing component
                      being in charge of power exhaust and removal of impurity
                      particles. In DEMO, divertor targets must survive an
                      environment of high heat fluxes (~up to 20 MW m−2 during
                      slow transients) and neutron irradiation. One advanced
                      concept for components in monoblock configuration concerns
                      the insertion of a compositionally graded layer between
                      tungsten and CuCrZr instead of the soft copper interlayer.
                      As a first step, a thin graded layer (~25 μm) was
                      developed. As a second step, a thicker graded layer (~500
                      μm), which is actually being developed, will also be
                      inserted to study the compliant role of a macroscopic graded
                      layer. This paper reports the results of cyclic high heat
                      flux loading tests up to 20 MW m−2 and to heat flux higher
                      than 25 MW m−2 that mock-ups equipped with thin graded
                      layer survived without visible damage. First feedback on
                      manufacturing steps is also presented. Moreover, the first
                      results obtained on the development of the thick graded
                      layer and its integration in a monoblock configuration are
                      shown.},
      cin          = {IEK-2 / IEK-4},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-2-20101013 / I:(DE-Juel1)IEK-4-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000414120500022},
      doi          = {10.1088/1402-4896/aa8b02},
      url          = {https://juser.fz-juelich.de/record/840449},
}