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A Novel Route for the Preparation of Nanocomposite Magnets
Author(s) -
Zhang X.,
Zhang J.,
Wang W.
Publication year - 2000
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 - 10.1002/1521-4095(200010)12:19<1441::aid-adma1441>3.0.co;2-0
Subject(s) - nanocomposite , materials science , coercivity , magnet , annealing (glass) , amorphous solid , alloy , grain size , composite material , nanotechnology , condensed matter physics , mechanical engineering , crystallography , chemistry , physics , engineering
Nanocomposite magnets are of importance because they are expected to provide a very high maximum‐energy product. Here is presented a route to α‐Fe/Sm 2 (Fe,Si) 17 C x nanocomposite magnets with fine grain size below 10 nm. Annealing amorphous Sm 8 Fe 85 ‐Si 2 C 5 alloy under high pressure gives nanocomposite magnets (see Figure) with significantly increased coercivity and remnant magnetization.