Tailoring of Soft Magnetic Properties and High Frequency Giant Magnetoimpedance in Amorphous Ribbons

González-Legarreta, Lorena; Prida, V.M.; Talaat, A.; Ipatov, M.; Zhukova, V.; Escoda, Li.; Suñol, J.J.; González, J.; Hernando, B.

doi:10.1007/978-3-319-49707-5_2

Cited by 3 publications

(3 citation statements)

References 42 publications

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“…Amorphous Co-rich ribbons have been fabricated by the melt-spinning technique using a Fe wheel as described in Ref. [57].…”

Section: Methodsmentioning

confidence: 99%

“…In addition, this system allows the application of a transversal bias field H B created by dc bias current I b applied to the sample by a bias-tee element. This system is connected to a vector network analyser N5230A (VNA), which allows measuring simultaneously the longitudinal and off-diagonal impedance components of the sample in the frequency range of 10 MHz-3500 MHz [41,57,58]. The longitudinal impedance component is obtained from the reflection coefficient S 11 by: where Z 0 = 50 Ω is the characteristic impedance of the electric coaxial line.…”

Section: Methodsmentioning

confidence: 99%

“…The other kind of rapidly quenched materials that can present excellent magnetic softness and hence high GMI effect are amorphous ribbons. Below we provide results on GMI effect optimization in soft ferromagnetic Co-rich (Co 66•5 Fe 3•5 Si 12•0 B 18.0 and (Co 0•95 Fe 0.05 ) 75 Si 10 B 15 ) amorphous ribbons produced by melt spinning at cooling rates of 10 3 -10 6 K/s as described elsewhere [9,14,57].…”

Section: Amorphous Ribbonsmentioning

confidence: 99%

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Giant magnetoimpedance in rapidly quenched materials

Zhukov

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et al. 2020

Journal of Alloys and Compounds

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“…Amorphous Co-rich ribbons have been fabricated by the melt-spinning technique using a Fe wheel as described in Ref. [57].…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Amorphous Ribbonsmentioning

confidence: 99%

See 1 more Smart Citation

Giant magnetoimpedance in rapidly quenched materials

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Condition Monitoring and Failure Prediction of Gear Rotation Using a Contactless RF Magnetic Sensor

Thiabgoh

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Structural and magnetic properties of CoFeSiB amorphous wire GMI element

Mitrović,

Orelj,

Nedeljković

et al. 2024

11th International Scientific Conference on Defensive Technologies - OTEX 2024 - Zbornik Radova

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In this study, the amorphous soft magnetic Co68.15Fe4.35Si12.5B15 wires prepared by the conventional inrotating water melt-spinning technique were investigated. The XRD pattern of the as-cast wire sample exhibits a very weak diffusive peak that reveals the amorphous structure. The DTA thermogram shows one exothermic process, which results from crystallization with a peak temperature of 566 °C. The XRD pattern of the sample annealed at 700 °C shows the presence of two diffraction peaks: the first could be ascribed to the crystal phase e-CoSi (structure of P2 order), and the second could belong to crystal phases Co2B and e-CoSi (P2 order). The giant magnetoimpedance (GMI) frequency behavior (ranging from 50 Hz to 5 MHz) was monitored as a function of an external dc magnetic field applied parallel to the wire sample. The critical frequency of about 5 kHz - 7 kHz was observed with the initial increase of MI. In the medium frequency range (which usually starts at about 1 MHz) the skin effect and the magnetization vector rotation mechanism are dominant in the process of circular magnetization (the movement of the magnetic domain walls is blocked). Therefore, the shape of dependence of the MI-ratio on the external DC magnetic field changes significantly and the appearance of a peak is recorded. The attained peak value of the impedance modulus of about 35 Ω was registered at the highest frequency of 5 MHz. The maximum GMI ratio of 334% was recorded at a frequency of 0.95 MHz (@ 7.72 kA/m).

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Tailoring of Soft Magnetic Properties and High Frequency Giant Magnetoimpedance in Amorphous Ribbons

Cited by 3 publications

References 42 publications

Giant magnetoimpedance in rapidly quenched materials

Giant magnetoimpedance in rapidly quenched materials

Condition Monitoring and Failure Prediction of Gear Rotation Using a Contactless RF Magnetic Sensor

Structural and magnetic properties of CoFeSiB amorphous wire GMI element

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