Study and Characterization of Soft Magnetic Properties of Fe73.5Cu1Nb3Si13.5B9 Magnetic Ribbon Prepared by Rapid Quenching Method


Nanocrystalline Fe-based alloys offer a new opportunity for tailoring soft magnetic materials. Nanocrystalline alloy in the form of ribbon with the composition of Fe73.5Cu1Nb3Si13.5B9 was prepared by rapid quenching method for soft magnetic properties analysis. The rapidly quenched alloy has been annealed in a controlled way in the temperature range 490 to 680 and annealing time 1 min to 60 min. The study of the structural parameters has been investigated by means of XRD analysis. Magnetic properties were analyzed by measuring B-H loop and frequency dependence of initial permeability. Enhanced value of initial permeability by two orders of magnitude and very low value of relative loss factor of the order of 103 has been observed with the variation of annealing temperature and time. The initial permeability for the optimum annealed sample has been found 23,064 as compared with 360 for its amorphous counterpart. The initial permeability spectra show dispersion around 100 kHz. Magnetic hysteresis has been investigated by measuring B-H loops at various magnetic fields for different annealing temperature and time. The coercivity and remanence has been found to decrease significantly for optimized annealed condition compared to as-cast state. The core loss of the samples decreases with the annealing time which indicates the good magnetic property of soft magnetic materials.

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Hossain, M. , Ferdous, J. , Haque, M. and Hakim, A. (2015) Study and Characterization of Soft Magnetic Properties of Fe73.5Cu1Nb3Si13.5B9 Magnetic Ribbon Prepared by Rapid Quenching Method. Materials Sciences and Applications, 6, 1089-1099. doi: 10.4236/msa.2015.612108.

Conflicts of Interest

The authors declare no conflicts of interest.


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