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Study of Stress-Annealing Enhancement of Magnetoimpedance Effect in Fe_{89.8}Ni_{1.5}Si_{5.2}B_{3}C_{0.5} Metallic Glass Ribbons

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Kalezić-Glišović A., Mitrović N., Maričić A., Djukić S., Simeunović R.

Acta Physica Polonica A

2008

vol. 113

issue 1

103-106

In this study, the magnetoimpedance effect in magnetically soft Fe_{89.8}Ni_{1.5}Si_{5.2}B_{3}C_{0.5} metallic glass ribbon samples with significant decrease in atomic percentage of metalloids content (less than 10 at.%) was investigated. Thermal treatments were performed by stress-annealing technique of up to 693 K/475 MPa/30 min. The critical frequency of about 600 kHz was observed as the point with the initial increase in magnetoimpedance ratio. Significant improvement of magnetoimpedance-response reaching the value ΔZ/Z=25% after stress-annealing at 693 K/130 MPa/30 min was recorded in samples with still amorphous structure at driving frequency of 4 MHz. The highest magnetoimpedance-element sensitivity was found for low magnetic field intensity (H ≤ 1 kA/m), where values of about 12%/kA/m were attained.

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1 Acta Physica Polonica A

1 2008

1 Djukić S.

1 Kalezić-Glišović A.

1 Maričić A.

1 Mitrović N.

1 Simeunović R.

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Study of Stress-Annealing Enhancement of Magnetoimpedance Effect in Fe_{89.8}Ni_{1.5}Si_{5.2}B_{3}C_{0.5} Metallic Glass Ribbons