Landolt-Börnstein - Group III Condensed Matter

7.1.2.3.4 Magnetic viscosity

Abstract

This chapter illustrates magnetic viscosity of Fe-Si, Fe-Al and Fe-Si-Al alloys. Temperature dependence of the viscosity field due to magnetically induced Si diffusion and ordering processes for two different alloy compositions of Fe-Si is shown. Relaxation time of magnetically induced Si diffusion and ordering processes as a function of the inverse temperature, and relaxation loss angle measured at 30 Hz as a function of temperature for Fe-Si alloy is illustrated. Further, the relaxation times associated with interstitial carbon orientation after-effects as a function of inverse temperature for Fe-Si alloy is shown. In addition, the dependence on alloy composition of the maximum viscosity field for Fe-Si and Fe-Al is shown. Similarly, the temperature dependence of viscosity field for various alloy compositions of Fe-Al is figured out. Relaxation times associated with Al ordering processes as a function of inverse temperature for Fe-Al alloy are shown. Finally, temperature dependence of isochronal relaxation curves of initial magnetic reluctivity for Fe-Si-Al alloy is illustrated. 180º domain wall stabilization field due to interstitial carbon after-effect versus 180º domain wall displacement and induction are also figured out.

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Title
7.1.2.3.4 Magnetic viscosity
Book Title
Magnetic Alloys for Technical Applications. Soft Magnetic Alloys, Invar and Elinvar Alloys
In
7.1.2.3 Basic magnetic properties of Fe-Si, Fe-Al, and Fe-Si-Al alloys
Book DOI
10.1007/b91565
Chapter DOI
10.1007/10065028_18
Part of
Landolt-Börnstein - Group III Condensed Matter
Volume
19I1
Editors
  • H. P. J. Wijn
  • Authors
  • G. Bertotti
  • F. Fiorillo
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