Landolt-Börnstein - Group III Condensed Matter Magnetostriction


This chapter discusses magnetostriction of amorphous alloys. The saturation magnetostriction constant λs, characterizes the change in linear dimension of a magnetic material if it is subjected to the influence of an external magnetic field. Magnetostrictive effects in amorphous alloys originate from the magnetoelastic interactions associated with the local anisotropy and the local strains. Their origin was discussed in terms of a single-ion model with random local axes or as stemming from a competition between single-ion and two-ion contribution. There are two groups of alloys of special interest for application namely the nearly zero magnetostriction alloys and high magnetostriction alloys. A survey of zero magnetostriction amorphous alloys is tabulated. Linear saturation magnetostriction constants are plotted as a function of Fe-Nb concentration x, temperature T, TM concentration x, Mn concentration x, Fe or Ni concentration x and Cr concentration x, for different alloys. Ternary diagram of the linear saturation magnetostriction constant at room temperature, and effect of isothermal annealing on linear magnetostriction constant versus annealing time ta, with annealing temperature Ta are illustrated.

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Title Magnetostriction
Book Title
Magnetic Alloys for Technical Applications. Soft Magnetic Alloys, Invar and Elinvar Alloys
7.1.3 Application-oriented amorphous ferromagnetic alloys
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Chapter DOI
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Landolt-Börnstein - Group III Condensed Matter
  • H. P. J. Wijn
  • Authors
  • S. Roth
  • A. R. Ferchmin
  • S. Kobe
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