Effect of the oxidation in the surface magnetic properties of as-quenched and relaxed Finemet alloy

Garcı́a, J.A.; Pierna, A.R.; Elbaile, L.; Crespo, R.D.; Vara, G.; Marzo, F.F.; Tejedor, M.

doi:10.1016/j.jnoncrysol.2006.02.174

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…It is worthy to indicate that the surface saturation magnetization is reached at lower applied magnetic field in the wheel surface than in the air surface. This different behaviour has been observed by some of the authors in relaxed samples of the same composition [8]. Table 1 shows that the coercivity H c in the nanocrystalline samples are lower than in the amorphous ones with the same oxidation cycles.…”

Section: Resultsmentioning

confidence: 58%

Effect of the oxidation in the surface coercive force of nanocrystalline alloy

Elbaile

Pierna

Garcı́a

et al. 2006

Journal of Magnetism and Magnetic Materials

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Section: Resultsmentioning

confidence: 58%

Effect of the oxidation in the surface coercive force of nanocrystalline alloy

Elbaile

Pierna

Garcı́a

et al. 2006

Journal of Magnetism and Magnetic Materials

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“…It is well known that the coercive field and the saturation magnetization change with the amount of oxygen on the surface of the specimens. 9,10) Besides, surface oxidation is an origin of the magnetoelastic effects in the amorphous metals. 11) However, surface oxidation is a usual problem in the nanocrystallization stage.…”

Section: Introductionmentioning

confidence: 99%

Improving the soft magnetic properties of the Fe_73.5Si_13.5B₉Nb₃Cu₁ nanostructured ribbons by annealing in the hydrogen atmosphere

Nourmohammadi¹,

Fesharaki²

2018

Jpn. J. Appl. Phys.

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The nanocrystallization stage was performed in a reductive hydrogen atmosphere to prevent surface oxidation and improve the soft magnetic properties of the amorphous, Fe 73.5 Si 13.5 B 9 Nb 3 Cu 1 alloy through annealing. Both the amorphous and nanocrystalline Fe 73.5 Si 13.5 B 9 Nb 3 Cu 1 ribbons were characterized by differential scanning calorimetry, transmission electron microscopy, X-ray diffraction, alternative gradient field magnetometry, and AC susceptometry techniques. To reduce the processing cost, commercially available industrial gas sources were used at the atmospheric pressure, instead of high purity inert gas or high vacuum ambient. The surface oxidation completely stopped after using a 70% Ar-30% H 2 mixture of such gases, also the period of the nanocrystallization stage decreased. Moreover, it was observed that the soft magnetic parameters of the nanocrystalline samples depend on the annealing time. Both the in-plane permeability and coercive field of the ribbons improved through nanocrystallization and the optimum annealing time was determined.

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Influence of annealing on the electrochemical behavior of finemet amorphous and nanocrystalline alloy

Shivaee

Golikand²,

Hosseini

et al. 2010

J Mater Sci

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Effect of the oxidation in the surface magnetic properties of as-quenched and relaxed Finemet alloy

Cited by 3 publications

References 17 publications

Effect of the oxidation in the surface coercive force of nanocrystalline alloy

Effect of the oxidation in the surface coercive force of nanocrystalline alloy

Improving the soft magnetic properties of the Fe_73.5Si_13.5B₉Nb₃Cu₁ nanostructured ribbons by annealing in the hydrogen atmosphere

Influence of annealing on the electrochemical behavior of finemet amorphous and nanocrystalline alloy

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Effect of the oxidation in the surface magnetic properties of as-quenched and relaxed Finemet alloy

Cited by 3 publications

References 17 publications

Effect of the oxidation in the surface coercive force of nanocrystalline alloy

Effect of the oxidation in the surface coercive force of nanocrystalline alloy

Improving the soft magnetic properties of the Fe73.5Si13.5B9Nb3Cu1 nanostructured ribbons by annealing in the hydrogen atmosphere

Influence of annealing on the electrochemical behavior of finemet amorphous and nanocrystalline alloy

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Improving the soft magnetic properties of the Fe_73.5Si_13.5B₉Nb₃Cu₁ nanostructured ribbons by annealing in the hydrogen atmosphere