【摘 要】
：
In the present work,the magnetization reversal behavior for the melt spinning(Nd0.8Ce0.2)2Fe1 2Co2-xZrxB(x = 0,0.5)permanent alloys with high coercivity was inv
【机 构】
：
Magnetism Key Laboratory of Zhejiang Province,China Jiliang University,Hangzhou 310018,China
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In the present work,the magnetization reversal behavior for the melt spinning(Nd0.8Ce0.2)2Fe1 2Co2-xZrxB(x = 0,0.5)permanent alloys with high coercivity was investigated by analyzing the hysteresis curves and the recoil loops.Compared to the Zr-free alloy,the Zr-doped sample obtains higher magnetic properties:coercivity of Hcj = 650.5 kA·m-1,squareness of Hk/Hcj = 0.76 and maximum energy product of(BH)max = 131.0 kJ·m-3.The first-order reversal curves(FORCs)analysis was taken to identify optimal conditions of exchange coupling for the Zr-free and Zr-doped alloys.The coercivity mechanism of the α-Fe/Nd2Fe14B nanocomposite alloys was analyzed by the angular dependence of the coercive field as measured for the Zr-doped sample.The results show that the mag-netic reverse process of the Zr-doped sample can be explained by the pinning model.
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