采用直接制备纳米晶和非晶晶化法获得了Nd8Fe82Co3Nb1B6纳米晶双相复合永磁合金,并借助XRD、VSM等分析手段比较了两种方法制备的永磁合金的显微结构及磁性能.结果表明,与非晶晶化方法相比,当辊速为20m/s时,可获得适当的过冷度,直接制备出晶粒尺寸较小的纳米晶双相永磁合金,获得较好的磁性能,其中,Br＝1.12T,Hcj＝381kA/m,(BH)max＝110.5kJ/m3.
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