Correlation between Barkhausen Noise and Coercivity in Amorphous and Nanocrystalline Fe-Cu-Nb-Si-B Alloys |
| L. Małkiński Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland and T. Kulik Department of Materials Science and Engineering, Warsaw University of Technology, Narbutta 85, 02-524 Warszawa, Poland |
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| Samples of amorphous and nanocrystalline alloys were prepared by proper annealing of the metallic glasses: Fe73.5Cu1Nb3Si13.5B9 and Fe73.5Cu1Nb3Si 17.5B5. Magnetic hardening of the alloys at the onset of crystallization was studied by the two independent techniques, i.e. measurements of the magnetization hysteresis loops and Barkhausen effect. A good correlation between the coercivity and the maximum power of the Barkhausen noise has been found in these two compositions of the alloys. |
| DOI: 10.12693/APhysPolA.91.435 PACS numbers: 75.60.Ej, 75.60.-d |