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@INPROCEEDINGS{Bram:1031879,
      author       = {Bram, Martin and Keszler, Monica and Grosswendt, Felix and
                      Assmann, Anne-Caroline and Krengel, Martin and Maccari,
                      Fernando and Gutfleisch, Oliver and Sebold, Doris and
                      Guillon, Olivier and Weber, Sebastian},
      title        = {{U}tilizing {F}ield {A}ssisted {S}intering for the
                      {R}ecycling of {H}ot-{D}eformed {N}d-{F}e-{B} {S}crap},
      reportid     = {FZJ-2024-05886},
      year         = {2024},
      abstract     = {With growing interest in electric vehicles and renewable
                      energy, recycling of Nd-Fe-B magnets will continue to become
                      ongoing challenge for the goal of a circular economy. Due to
                      the microstructure necessary for hot-deformed Nd-Fe-B
                      permanent magnets, state-of-the-art magnet production
                      methods have limitations with regards to the direct
                      recycling of scrap magnet particles with anisotropic
                      microstructure. Recent work has shown that a combination of
                      pre-sintering by Field Assisted Sintering Technology/Spark
                      Plasma Sintering (FAST/SPS) and hot deformation by Flash
                      Spark Plasma Sintering (Flash SPS) has can potentially
                      produce Nd-Fe-B magnets directly from $100\%$ scrap
                      material. A systematic study was done to consolidate a
                      combination of recycled magnet particles and melt-spun
                      powder into a Flash SPS deformed magnet, using a range of
                      weight percentages of scrap material and scrap particle size
                      fractions. In some cases, HcJ of >1400 kAm-1 and Br of 1.1 T
                      could be achieved with 20 $wt.\%$ scrap material. The
                      relationship between oxygen uptake, particle size fraction,
                      and percentage of recyclate in a final magnet are all
                      explored and discussed in comparison to magnets produced
                      with pristine material.},
      month         = {Sep},
      date          = {2024-09-24},
      organization  = {Materials Science and Engineering,
                       Darmstadt (Germany), 24 Sep 2024 - 26
                       Sep 2024},
      subtyp        = {Other},
      cin          = {IMD-2 / JARA-ENERGY},
      cid          = {I:(DE-Juel1)IMD-2-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {899 - ohne Topic (POF4-899)},
      pid          = {G:(DE-HGF)POF4-899},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1031879},
}