The effect of field-quenching fabrication on the magnetoimpedance response in Co66Fe4Ni1Si15B14 amorphous ribbons

Abstract

The magnetoimpedance response of the soft amorphous magnetic CoFeNiSiB alloy can be improved by the application of a small magnetic field during the fabrication process. Calorimetric and magnetic (hysteresis loop) behavior as well as magnetoimpedance response of melt-spun ribbons obtained by two different ways of production processes are analyzed in this work. The crystallization dynamics also show small differences. High sensitivities to the applied magnetic field up to 320%/Oe are observed when a small transverse anisotropy is induced in the ribbon sample during the fabrication process under the action of a magnetic field.

Thermal and Structural Analysis of Mn49.3Ni43.7Sn7.0 Heusler Alloy Ribbons

“…Rapid solidification offers advantages over conventional metallurgy processes to develop alloys with specific functional properties following the increasing demand for high performance materials [1][2][3]. A refined microstructure, structural and chemical homogeneity and extension of solid solubility are some of the unique features achieved through rapid solidification [4,5].…”

Recent Research on the Magnetoimpedance Effect in Co-Based Amorphous Ribbons

“…Consequently, we have recently focused our attention on the study of the GMI response in very thin nearly-zero magnetostrictive amorphous ribbons [9][10]. Since GMI effect is associated to the sensitivity of the circular/transverse component of the magnetic susceptibility in the wire/ribbon sample to the external magnetic field, it is reasonable the recent interest to investigate the effect of different aspects, i.e.…”