Landolt-Börnstein - Group III Condensed Matter

7.1.2.4.1 Hysteresis loop properties, magnetic domains, magnetostriction

Abstract

This chapter describes magnetic properties of silicon-iron single crystals. Silicon-iron single-crystal plates, with Si concentration around 3 ... 4 wt%, are usually obtained by means of metallurgical processes which induce abnormal and selective grain growth in polycrystalline laminations. A diagram of orientation and typical magnetic domain structure of a single-crystal picture frame, and magnetization curves of three single-crystal picture frames of Fe-3.85 wt% Si are shown. Permeability versus intensity of magnetization for three single-crystal picture frames of Fe-3.85 wt% Si and induction at a field of 10 Oe versus misorientation angle for Fe-3 wt% Si single crystals with nearly perfect (110) [001] orientation are illustrated. Feedback-controlled hysteresis loops of Fe-Si single-crystal picture frames, and volume fraction of supplementary cross domains in the demagnetized state versus tilt angle of the [001] axis out of the crystal surface are demonstrated. Ratio between 180º domain width and crystal thickness versus tilt angle of the [001] axis out of the crystal surface for Fe-Si single crystal is shown. Further, relative magnetostrictive elongation, cyclic behaviour of magnetostriction and zero-to-peak magnetostriction are also figured out.

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Title
7.1.2.4.1 Hysteresis loop properties, magnetic domains, magnetostriction
Book Title
Magnetic Alloys for Technical Applications. Soft Magnetic Alloys, Invar and Elinvar Alloys
In
7.1.2.4 Silicon-iron single crystals
Book DOI
10.1007/b91565
Chapter DOI
10.1007/10065028_19
Part of
Landolt-Börnstein - Group III Condensed Matter
Volume
19I1
Editors
  • H. P. J. Wijn
  • Authors
  • G. Bertotti
  • F. Fiorillo
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