Magnetization Reversal Processes in Pr-Fe-B-type Nanocrystalline Magnets

• Authors: K. Pawlik , P. Pawlik , W. Kaszuwara , J. Wysłocki
• Languages of publication: EN

Abstracts

EN

The magnetization reversal processes in magnets derived from rapidly solidified Pr_{9}Fe_{52}Co_{13}Zr_{1}Nb_{4}B_{21} alloy samples were studied by analysis of minor hysteresis loops and recoil curves. The studies were carried out on suction-cast 1 mm diameter rod, 1 mm thick plate, 3 mm outer diameter (o.d.) tube and melt-spun ribbon samples subjected to annealing at 983 K for 5 min. The X-ray diffraction analysis has shown multiphase constitution of the samples. Structural and magnetic studies indicated that the initial state of microstructure and phase composition affects the magnetization reversal processes in annealed samples due to a variation of microstructure in samples of various shapes. Magnetic studies allowed estimation of the mean values of nucleation and pinning fields that control the magnetization reversal processes.

Keywords

EN

75.50.Vv; 75.60.Ej; 75.50.Bb; 75.50.Tt; 75.50.Ww

Discipline

• 75.50.Tt: Fine-particle systems; nanocrystalline materials
• 75.60.Ej: Magnetization curves, hysteresis, Barkhausen and related effects(for hysteresis in ferroelectricity, see 77.80.Dj)
• 75.50.Vv: High coercivity materials
• 75.50.Ww: Permanent magnets(for magnets, see 07.55.Db in instruments)
• 75.50.Bb: Fe and its alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 186-187

Dates

published

2014-07

Contributors

author

K. Pawlik

• Institute of Physics, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland

author

P. Pawlik

• Institute of Physics, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland

author

W. Kaszuwara

• Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warszawa, Poland

author

J. Wysłocki

• Institute of Physics, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland

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Identifiers

DOI

10.12693/APhysPolA.126.186