Magnetic properties of Fe–Co–Mo–Cu–B nanocrystalline ribbons with stressing surfaces

Butvin, P.; Butvinová, B.; Švec, P.; Vlasák, G.; Janičkovič, D.

doi:10.1016/j.jallcom.2010.09.154

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…The comparison of Si-rich and Si-poor materials, not limited to just Finemets, shows the former to tilt the loop and the latter to erect the loop after the surface removal [13,14]. If the opposite response of the Si-rich Finemets actually comes from the removal of not squeezing, but spreading surfaces, then it means that MH actually can create stress of either sign.…”

Section: Magnetic Anisotropy and Macroscopic Heterogeneity Of Si-richmentioning

confidence: 99%

Application Potential of Nanocrystalline Ribbons Still Pending

Butvin¹,

Butvinová²,

Švec³

et al. 2010

Journal of Electrical Engineering

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Nanocrystalline soft-magnetic ribbons promised a wide-spread practical use when introduced at the beginning of nineties. After 20 years of extensive research there are still unclear material problems which are thought to be the principal reason why these materials show but marginal use. Poorly controllable magnetic anisotropy due to spontaneous intrinsic macroscopic stress that comes from an inevitable heterogeneity of the ribbon materials is pointed to in this work. Certain stress-based mechanisms are shown to induce the unintended anisotropy in the already familiar Finemets as well as in the newer Hitperms. Hysteresis loops, domain structure and power loss is used to reveal the anisotropy consequences and particular connected but still unanswered questions are pinpointed.

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Section: Magnetic Anisotropy and Macroscopic Heterogeneity Of Si-richmentioning

confidence: 99%

Application Potential of Nanocrystalline Ribbons Still Pending

Butvin¹,

Butvinová²,

Švec³

et al. 2010

Journal of Electrical Engineering

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“…It was due to the useful combination of such a features like a magnetic softness potentially combined with high values of saturation induction [4][5][6][7][8] and also low values of saturation magnetostriction and magnetocrystalline anisotropy, given by the homogeneous and ultrafine structure of bccFe grains immersed in amorphous matrix [6,9,10]. Alloying of Fe-B systems by Sn has favorable effect on the nucleation and growth of nanocrystalline grains from amorphous matrix, [9][10][11] and has a potential to improve the properties mentioned above.…”

Section: Introductionmentioning

confidence: 99%

Structure of Rapidly Quenched Fe-Co-Sn-B Systems with Varying Fe/Co Ratio

Janotová

Maťko

Švec

et al. 2015

Journal of Electrical Engineering

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We present a study of ferromagnetic systems based on Fe-Co-Sn-B in nanocrystalline state. Interesting magnetic properties potentially are given by the homogeneous and ultrafine structure of bcc Fe grains in amorphous structure. The effect of alloying by Sn improves the properties of resulting structure constituted be crystalline grains in amorphous matrix. The structure transformation from amorphous state was investigated by selected techniques of thermal analysis and the resulting phase and morphology of crystalline products were analyzed.K e y w o r d s: metallic glasses, planar flow casting, soft magnetic materials, amorphous materials, iron-cobalt-boron alloys, nanocrystalline structure

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