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Recycling Used Nd‐Fe‐B Sintered Magnets via a Hydrogen‐Based Route to Produce Anisotropic, Resin Bonded Magnets
Author(s) -
Gutfleisch Oliver,
Güth Konrad,
Woodcock Thomas George,
Schultz Ludwig
Publication year - 2013
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201200337
Subject(s) - magnet , materials science , anisotropy , hydrogen , composite material , metallurgy , mechanical engineering , optics , chemistry , physics , organic chemistry , engineering
Hydrogen processing (HD + HDDR) is used to recycle Nd‐Fe‐B sintered magnets yielding anisotropic resin bonded magnets (RBM). HD produces single‐crystalline powders from the sintered magnets. HDDR improves the magnetic properties by producing ultrafine grained, highly textured polycrystals. RBM produced from optimally processed recycled material shows comparable magnetic properties to non‐recycled RBM.