研究了微波场对晶化的影响.结果表明,将非晶合金Fe73.5Cu1Nb3Si13 5B9在微波场作用下在480℃短时间(5 min)晶化处理,形成体积分数为80%、尺寸约15nm的α-Fe(Si)相;适当延长晶化时间(30 min)使非晶合金完全晶化,α-Fe(Si)相的晶粒不再长大,原子层之间的距离降低至0.2461 nm,磁体具有最大Ms为1.79 T.与激光、激波、脉冲电场和脉冲磁场晶化处理相比,微波场晶化处理可同时获得单一的、更小晶粒尺寸和更高体积分数的α-Fe(Si)晶化相,使合金具有高的饱和磁化强度和优良的软磁性能.微波场有利于非晶合金中的硼原子向空位跃迁,使基体金属相α-Fe(Si)相的形核率增大,促进非晶合金的纳米晶化.
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