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Pan M.-X.,Magnetism Key Laboratory of Zhejiang Province | Pan M.-X.,China Jiliang University | Ge H.-L.,Magnetism Key Laboratory of Zhejiang Province | Ge H.-L.,China Jiliang University | And 14 more authors.
Jinshu Rechuli/Heat Treatment of Metals | Year: 2011

The microstructure and magnetic properties of the Zr-doped α-Fe/Pr2Fe14B nanocomposite magnets prepared by melt spinning were studied by X-ray diffraction (XRD) and Vibrating Sample Magnetometer (VSM). The magnetization reversal behavior and exchange-coupling mechanism during the recoil processes of nanocomposite magnet was investigated by analyzing the demagnetization curves and recoil loops of demagnetization curves. The results of the magnetic properties show that the coercivity of the alloys with 1 at % Zr addition increases from 470.7 kA/m up to 793.2 kA/m, and the maximum energy product increases from 66.8 kJ/m3 up to 90.8 kJ/m3. The recoil loop results show that 1 at % Zr doped sample has a lower energy loss as a function of the applied reversal field.

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