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Some Magnetic Properties of Thin Films Prepared from Fe-(M-NO-Si-B (M=Cu, Ag, Pt, Pd) Alloys

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Gościańska I., Ratajczak H., Sovák P., Konć M., Matta P.
Acta Physica Polonica A
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1994
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vol. 85
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issue 2
423-426
EN
Saturation magnetic induction, B_{s}, and coercive field, H_{c}, have been studied upon annealing in films flash evaporated from Fe_{73.5}M_{1}Nb_{3}Si_{13.5}B_{8} alloys. The changes in B_{s} significantly diverged at increasing annealing temperature, T_{a}, and did not indicate any formation of ultrafine grain phase in the films. H_{c} measured as an angular function in the plane of the films revealed oscillations due to weak in-plane anisotropy. The coercivity increased in the course of annealing at increasing T_{a}, while the in-plane anisotropy decreased at the same time.
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Influence of Annealing Treatment on the Structure and Magnetic Properties of Fe-Al-Cu-Nb-Si-B Alloys

100%
Pavlík G., Matta P., Sovák P., Zorkovská A., Konč M.
Acta Physica Polonica A
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2000
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vol. 97
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issue 5
741-744
EN
In this paper we present experimental results on influence of Al content on the structure and saturation magnetostriction of Fe-Al-Cu-Nb-Si-B alloys after heat treatment. Transmission electron microscopy observations confirmed the existence of nanocrystalline structure after annealing at 490°C and 550°C for all samples. The crystallization temperature of FeSi phase and the temperature at which the polycrystalline transformation starts were determined from temperature dependence of electrical resistivity. Aluminium slightly decreases the first crystallization temperature and considerably decreases the saturation magnetostriction in as-quenched state.
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