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@ARTICLE{PrasadMishra:910106,
      author       = {Prasad Mishra, Tarini and Leich, Lennart and Krengel,
                      Martin and Weber, Sebastian and Röttger, Arne and Bram,
                      Martin},
      title        = {{N}d{F}e{B} {M}agnets with {W}ell‐{P}ronounced
                      {A}nisotropic {M}agnetic {P}roperties {M}ade by {E}lectric
                      {C}urrent‐{A}ssisted {S}intering},
      journal      = {Advanced engineering materials},
      volume       = {25},
      number       = {1},
      issn         = {1438-1656},
      address      = {Frankfurt, M.},
      publisher    = {Deutsche Gesellschaft für Materialkunde},
      reportid     = {FZJ-2022-03614},
      pages        = {2201027},
      year         = {2023},
      abstract     = {Electric current-assisted sintering (ECAS) technologies are
                      highly promising for processing of NdFeB magnets. Due to the
                      combination of direct Joule heating and application of
                      external load, even powders, whose particle size
                      distribution and morphology are not optimum for conventional
                      powder processing like melt-spun powders or magnet scrap,
                      can be easily sintered to high densities. A systematic study
                      is done to demonstrate the potential of field-assisted
                      sintering technique/spark plasma sintering (FAST/SPS) and
                      flash spark plasma sintering (flash SPS) for sintering of
                      NdFeB powders. Melt-spun, commercial NdFeB powder
                      (Magnequench MQU-F) is used as starting material. Its
                      platelet-like shape makes this powder extremely difficult to
                      sinter by conventional methods. This study clearly reveals
                      that especially in the case of flash SPS application of
                      external pressure in combination with short cycle times
                      enables to achieve well-pronounced anisotropic magnetic
                      properties without the need of subsequent upset forging.
                      Optimized flash SPS parameters are applied to NdFeB magnet
                      scrap with broad particle size distribution, demonstrating
                      the general potential of ECAS technologies for recycling of
                      waste magnet materials. Finally, the results are benchmarked
                      with respect to established NdFeB processing technologies
                      and electrodischarge sintering (EDS), another promising ECAS
                      technology with very short cycling time.},
      cin          = {IEK-1},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {899 - ohne Topic (POF4-899)},
      pid          = {G:(DE-HGF)POF4-899},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000864408400001},
      doi          = {10.1002/adem.202201027},
      url          = {https://juser.fz-juelich.de/record/910106},
}