Stress and magnetic field dependence of magneto-impedance in amorphous Co66.3Fe3.7Si12B18 ribbons

Stress-MI and domain studies in Co-based nanocrystalline ribbons

“…The MIs of the sa ribbons too exhibited double peak behaviors, with the fields at which the largest MI was observed being the same as in the ca and ja ribbons. It was also observed that, for all the alloys studied, MI increased for loads up to 10 MPa and decreased with further increase of the load, probably due to the enhancement in the anisotropy induced by stress annealing [14][15][16][17] Al ribbons, respectively ( Fig. 4(b)).…”

Anisotropic Mechanical and Giant Magneto-Impedance Properties of Cobalt-Rich Amorphous Ribbons

“…3,20 On the other hand, different mechanical responses of this type of ribbon are also expected when the ribbon is subjected to a tensile stress applied parallel (longitudinal) and transverse to its length, since the application of a mechanical stress during thermal annealing has been reported to induce magnetic anisotropy with the corresponding modification of the domain structure. [21][22][23] While a few works on the mechanical properties of amorphous ferromagnetic alloys have been performed to date, [24][25][26][27] to our best knowledge, no work has reported on the anisotropy of the mechanical properties and its relation to the GMI properties of Co-rich amorphous ribbons.…”

Giant stress-impedance effect in Fe71Cr7Si9B13 amorphous wires

“…Up to now, the magnetic field and stress dependence of MI of Fe 77.5 Si 7.5 B 15 , Co 72.5 Si 12.5 B 15 and (Fe 0.06 Co 0.94 ) 72.5 Si 12.5 B 15 compositions have attracted more attention because they exhibit positive, negative and nearly zero magnetostriction, respectively thus allowing the effect of magnetostriction on the magnetic properties to be investigated more rigorously [14][15][16][17][18][19]. Recently it has been reported that FeCrSiB wires have more superior mechanical properties than other amorphous and HT steel wires [20] and show a very large GMI [21].…”