Properties, Benefits and Application of Nanocrystalline Structures in Magnetic Materials

  1. Prof. Dr. Michael Zehetbauer2 and
  2. Prof. Ruslan Z. Valiev3
  1. Roland Grössinger,
  2. Reiko Sato,
  3. David Holzer and
  4. Mikael Dahlgren

Published Online: 28 JAN 2005

DOI: 10.1002/3527602461.ch1b

Nanomaterials by Severe Plastic Deformation

Nanomaterials by Severe Plastic Deformation

How to Cite

Grössinger, R., Sato, R., Holzer, D. and Dahlgren, M. (2004) Properties, Benefits and Application of Nanocrystalline Structures in Magnetic Materials, in Nanomaterials by Severe Plastic Deformation (eds M. Zehetbauer and R. Z. Valiev), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527602461.ch1b

Editor Information

  1. 2

    Institut für Materialphysik, Universität Wien, Boltzmanngasse 5, 1090 Wien, Austria

  2. 3

    Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 12 K. Marks Str., Ufa, 450 000, Russia

Author Information

  1. Institut für Festkörperphysik, Technische Universität Wien, Wien, Austria

Publication History

  1. Published Online: 28 JAN 2005
  2. Published Print: 25 FEB 2004

ISBN Information

Print ISBN: 9783527306596

Online ISBN: 9783527602469

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Keywords:

  • properties;
  • benefits;
  • application of nanocrystalline structures;
  • magnetic materials

Summary

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.