Abstract
The structural and magnetic properties of as-cast and annealed Co-rich microwires in a glass shell with the diameter of D = 125 μm and the diameter of the amorphous metallic core of d = 50-90 μm, produced by the modernized Ulitovsky-Taylor method, have been investigated. The saturation field HS and the coercive force HC of the samples were found to depend on annealing temperature. The near-surface values of HS and HC were discovered to be larger than the bulk ones. The obtained experimental data were explained by the structural features of the microwires under study.
Highlights
Amorphous magnetic materials were discovered more 50 years ago, the interest to studying their structural, magnetic and kinetic properties remains up to now
In this paper we present the results of the detailed investigation of the mechanical, elastic and magnetic characteristics of the as-cast and annealed thick Co-rich microwires, produced by the modernized Ulitovsky–Taylor method
The thick microwires were found to exhibit very high plasticity level, which is characterized by its ability to be tied into a knot without fracture (Figures 1)
Summary
Amorphous magnetic materials were discovered more 50 years ago, the interest to studying their structural, magnetic and kinetic properties remains up to now. This fact is cased by the possibility of wide use of amorphous materials in modern micro- and nanoelectronics with relatively low cost of their production. The revealed unique magnetic properties of amorphous microwires were caused their wide application in practice for manufacturing high sensitive sensors of magnetic fields, stresses, low pressures, strains, etc., and new types of coding devices [4,5,6,7,8,9,10,11,12]
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