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Properties, Benefits, and Application of Nanocrystalline Structures in Magnetic Materials
Author(s) -
Grössinger R.,
Sato R.,
Holzer D.,
Dahlgren M.
Publication year - 2003
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200310081
Subject(s) - nanocrystalline material , coercivity , remanence , materials science , coupling (piping) , grain size , inductive coupling , condensed matter physics , magnet , isotropy , nuclear magnetic resonance , magnetization , nanotechnology , magnetic field , composite material , mechanical engineering , optics , physics , quantum mechanics , engineering
The magnetic properties of nanocrystalline hard magnetic and soft magnetic are summarized. When the grain size becomes of the order f the magnetic exchange length exchange coupling occurs. The different concepts of exchange coupling in these materials are discussed. Exchange coupling leads in isotropic hard magnetic materials to a remanence enhancement. Soft magnetic materials exhibit due to exchange coupling a lower coercivity, lower losses and consequently also improved properties.