Effect of tensile and torsion on GMI in amorphous wire
1999; Elsevier BV; Volume: 196-197; Linguagem: Inglês
10.1016/s0304-8853(98)00757-4
ISSN1873-4766
AutoresJ.M. Blanco, А. Zhukov, J. González,
Tópico(s)Magnetic properties of thin films
ResumoGMI effect, ΔZ/Z = [Z(H) − Z(Hmax)]/Z(Hmax) has been measured in (Fe0.94Co0.06)72.5B15Si12.5 wire under tensile, σten, and torsional, σtor, stresses. Generally ΔZ/Z(H) dependence has a non-monotonic shape with a maximum at certain axial magnetic field, Hm. Both tension and torsion modify ΔZ/Z(H) dependence. Application of tension results in an increase of Hm with σten. Torsional stress dependence of GMI effect has asymmetry with a maximum at torsion angle, φ, around + 12π/m in as-cast wire, when ΔZ/Z is around 250%. An increase of ΔZ/Zm up to 350% and change of ΔZ/Z(φ) dependence towards a nearly symmetric shape have been observed after Joule heating.
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