ACTA

Magnetic Interactions and Coercivity Mechanism in Nanocrystalline Nd-Fe-B Ribbons with Nb Addition

A. Przybył^a, I. Wnuk^a, J. Wysłocki^a, K. Kutynia^a, M. Kaźmierczak^b, M. Rychta^a, P. Gębara^a
^aDepartment of Physics, Czestochowa University of Technology, Armii Krajowej 19, 42-200 Częstochowa, Poland
^bComplex of Schlools in Goleniowy, Kościuszki 20, 42-445 Szczekociny, Poland

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In the present paper, the phase structure, magnetic properties, and magnetization reversal processes in the (Nd₁₀Fe₆₇B₂₃)₉₃Nb₇ alloy ribbon were investigated. The X-ray diffraction analysis revealed a coexistence of the following phases: hard magnetic Nd₂Fe₁₄B, metastable soft magnetic Nd₂Fe₂₃B₃, and paramagnetic Nd_1+εFe₄B₄. Moreover, the changes in phase composition were noticed after heat treatment. In order to check magnetic measurements, the hysteresis loops were collected. The magnetization reversal curves were studied by constructing the reversible part of magnetization dependence on the irreversible part of magnetization.

DOI:10.12693/APhysPolA.144.333
topics: X-ray diffraction (XRD), magnetic properties, magnetization reversal processes