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Cerium: An Unlikely Replacement of Dysprosium in High Performance Nd–Fe–B Permanent Magnets
Author(s) -
Pathak Arjun K.,
Khan Mahmud,
Gschneidner Karl A.,
McCallum Ralph W.,
Zhou Lin,
Sun Kewei,
Dennis Kevin W.,
Zhou Chen,
Pinkerton Frederick E.,
Kramer Matthew J.,
Pecharsky Vitalij K.
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201404892
Subject(s) - dysprosium , neodymium magnet , materials science , cerium , magnet , rare earth , coercivity , rare earth element , lanthanide , metallurgy , doping , neodymium , inorganic chemistry , condensed matter physics , optoelectronics , optics , ion , mechanical engineering , laser , engineering , chemistry , physics , quantum mechanics
Replacement of Dy and substitution of Nd in NdFeB‐based permanent magnets by Ce, the most abundant and lowest cost rare earth element, is important because Dy and Nd are costly and critical rare earth elements. The Ce, Co co‐doped alloys have excellent high‐temperature magnetic properties with an intrinsic coercivity being the highest known for T ≥ 453 K.