Affiliation:
1. Hebei Institute of Architecture and Civil Engineering
2. Hebei Institue of Architecture and Civil Engineering
Abstract
The microstructure and magnetic properties of melt-spun nanocomposite (Nd, Dy, Pr)-(Fe,Nb,Zr)-B /α-Fe ribbons have been investigated by XRD, SPM and VSM. The ribbons were prepared at a wheel speed range of 10-30 m/s. The multigrain domain or interaction domain was observed in the samples prepared at 20 m/s wheel speed. The easy magnetized direction c-axis parallel to the ribbon plane for the sample prepared at the wheel speed of 20m/s. The average gain size in this sample is about 18nm and the sample consists of hard magnetic phase (Nd, Dy, Pr) 2(Fe,Nb,Zr)14B and sofe magnetic phase α-Fe, there is strong exchange-coupling interaction between them. The magnetic properties obtained are Br=1.28T，Hci= 504.2kA•m-1，(BH)max= 157.8 kJ•m-3，Mr/Ms =0.76.
Publisher
Trans Tech Publications, Ltd.
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