DocumentCode
862023
Title
Study of magnetic hardness in ring shaped polycrystalline soft magnetic garnets
Author
Le Floc´h, M. ; Konn-Martin, A.M.
Author_Institution
Lab. d´´Electron. et des Syst. de Telecommun., CNRS, Brest, France
Volume
26
Issue
5
fYear
1990
fDate
9/1/1990 12:00:00 AM
Firstpage
2235
Lastpage
2237
Abstract
The Neel magnetic hardness was studied in polycrystalline soft magnetic materials. Results show different behaviors, varying with the state of the microstructure. When samples are porous to about 20%, the approach to saturation follows the Neel law with a magnetic hardness proportional to porosity. However, when samples have a regular distribution of defect-free grains with thin grain boundaries, the Neel law is no longer valid, and magnetic hardness has another definition involving a simple dependence on the effective anisotropy field
Keywords
ferromagnetic properties of substances; Neel law; Neel magnetic hardness; defect-free grains; effective anisotropy field; magnetic hardness; microstructure; porosity; ring shaped polycrystalline soft magnetic garnets; thin grain boundaries; Coils; Demagnetization; Equations; Garnets; Magnetic anisotropy; Magnetic materials; Microstructure; Perpendicular magnetic anisotropy; Saturation magnetization; Soft magnetic materials;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.104682
Filename
104682
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