Development of Ultra-Thin Glass-Coated Amorphous Microwires for High Frequency Magnetic Sensors Applications

Zhukova, V.; Ipatov, M.; Garcia, C.; Gonzalez, J.; Blanco, J. M.; Zhukov, A.

doi:10.2174/1874088x07010110x8

Cited by 1 publication

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References 10 publications

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“…Thus, for Ferich Fe 75.5 B 13 Si 11 Mo 0.5 microwire with metallic nucleus diameter of about 18 μm (Fig. 6.29a, b), ΔZ/Z m % 45 % at f ¼ 500 MHz has been reported [99]. Similarly to conventional "in-rotating-water" Fe-rich wire, a maximum on ΔZ/Z(H ) dependence can be observed above f !…”

Section: Giant Magnetoimpedance Stress Impedance and Torsion Impedamentioning

confidence: 79%

“…6.24 for the (Co 0.94 Fe 0.06 ) 72.5 B 15 Si 12.5 conventional amorphous wire) [17,18,98]. Circular domain structure with high circumferential permeability proved to be very favorable for highest GMI effect [99]. Such domain configuration is typical for the nearly zero magnetostrictive amorphous wires mainly produced by Unitika Ltd (Japan) [100].…”

Section: Giant Magnetoimpedance Stress Impedance and Torsion Impedamentioning

confidence: 94%

“…Therefore, further processing or careful chemical composition selection of the other families of wires is needed [99]. Moreover, as shown elsewhere, AC current frequency for the achievement of optimum ΔZ/Z m values must be higher.…”

Section: Giant Magnetoimpedance Stress Impedance and Torsion Impedamentioning

confidence: 99%

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Soft Magnetic Wires for Sensor Applications

Zhukova

2016

Springer Series in Materials Science

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First amorphous materials using rapid quenching from the liquid state were prepared nearly 50 years ago [1][2][3][4]. Development of the rapid-quenching technique allowed obtaining of new materials with metastable crystalline, amorphous, nanocrystalline, granular structures with a new combination of physical properties (mechanical, magnetic, electrochemical, etc.) and opening of new fields of research in material science, magnetism, and technology. During the next years, few rapidquenching technologies allowing preparation of different types of rapidly quenched materials have been developed. At the beginning most attention has been paid to studies of planar rapidly quenched materials: rapidly quenched ribbons produced by quenching on the drum [4][5][6].Excellent magnetic softness of amorphous materials obtained by the meltspinning technique has attracted considerable attention, making them very attractive in potential applications in recording head and microtransformer industries. Such magnetic softness originates from the absence of magnetocrystalline anisotropy in these alloys [6].Further development of the rapidly quenching fabrication techniques allowed preparation of rapidly materials with cylindrical symmetry: rapidly quenched wires [7][8][9][10]. Amorphous wires, typically around 125 μm in diameter, obtained by the so-called in-rotating-water quenching technique, have been firstly introduced in 1980.The magnetostrictive compositions exhibit rectangular hysteresis loop, while the best magnetic softness is observed for the nearly zero magnetostriction composition.

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Section: Giant Magnetoimpedance Stress Impedance and Torsion Impedamentioning

confidence: 79%