ACTA

Influence of Zn on Structure and Magnetic Properties of Rapid Quenched (Fe-Zn)-Cu-Nb-Si-B Alloys

V. Kolesar^a, S. Michalik^a, J. Kovac^b, V. Girman^a, P. Sovak^a and P. Kollar^a
^aInstitute of Physics, P.J. Safarik University, Park Angelinum 9, 041 54 Kosice, Slovakia
^bInstitute of Experimental Physics, Slovak Academy of Science, Watsonova 47, 041 01 Kosice, Slovakia

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The aim of this work was to study the influence of Zn on the formation of nanostructure in Fe_{73.5 - x}Zn_xCu₁Nb₃Si_13.5B₉ (x = 1, 3, 5) ribbons prepared by the melt-spinning technique. X-ray diffraction measurements proved amorphous state of the sample with x = 1. The sample with x = 3 contains a small fraction of Fe₃Si phase and the sample with x = 5 is in nanocrystalline state with the average grain size of about 25 nm. The reduced radial distribution function G(r) was calculated for local structure investigation. Increasing Zn content enhances crystallization during solidification which leads to increase of magnetocrystalline anisotropy and consequently to increase of coercivity.

DOI: 10.12693/APhysPolA.118.790
PACS numbers: 61.46.Hk, 75.50.Bb, 75.75.Cd