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Chemical Ordering and Microstructural Affects on Magnetic Properties of Sm2Fe17 and Sm2Fe17Nx

Published online by Cambridge University Press:  21 February 2011

B.E. Meacham ,
K.W. Dennis ,
R.W. Mccallum  and
J.E. Shield
B.E. Meacham
Affiliation:
Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT 84112
K.W. Dennis
Affiliation:
Ames Laboratory, USDOE, Ames, IA 50011
R.W. Mccallum
Affiliation:
Ames Laboratory, USDOE, Ames, IA 50011
J.E. Shield
Affiliation:
Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT 84112
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Abstract

The effect of chemical order and defect structure on the magnetization process in Sm2Fe17 and Sm2Fe17Nx has been investigated. In Sm2Fe17, chemical disorder results in the development of random anisotropy and a small degree of magnetic hardness. The anisotropy is reduced as long-range order increases. The motion of domain walls in Sm2Fe17Nx is more dependent on the antiphase domain structure than on the amount of long-range order.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 577: Symposium H – Advanced Hard and Soft Magnetic Materials , 1999 , 327
Copyright
Copyright © Materials Research Society 1999

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References

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