Amorphous mircrowire and method for manufacture thereof

摘要

An amorphous microwire coated with an insulating sleeve, consisting of a metal core made up of an alloy of transition metals and metalloid elements, at a proportion between 65%-90% and 10%-35%, respectively, and an insulating glass sleeve; the transition metals are at least iron, the relative proportion of iron being between 65%-100% of the total transition metals, and the core diameter (D_c) is comprised between 2 µm and 20 µm,such that the magnetostriction constant (λ) of the metal alloy is comprised between 1 and 30 ppm, and the natural ferromagnetic resonance frequency is comprised between 3 and 20 GHz.;The invention also refers to a method for the manufacture of an amorphous microwire.