采用真空快淬工艺制备SmxFe70-xSi20Co10(x=0,1,2)磁性合金,高能球磨后通过SEM、XRD、VSM等手段研究Sm掺杂对FeSiCo基快淬合金微观结构、非晶形成能力、磁性能的影响,采用Agilent PNA 8363B微波矢量网络分析仪测试合金粉末的电磁参量.研究结果表明,快淬SmFeSiCo合金粉末经高能球磨后具有扁平状的形貌结构；Sm掺杂量的变化对合金粉末相结构的影响较小,都为α-Fe(Co)结构；随着Sm掺杂量的增加.矫顽力相应减小,在x=2时,合金具有最低的矫顽力值87.291 Oe,饱和磁化强度Ms则相应增大,在x=2时,合金具有最高的饱和磁化强度值142.955 emu/g;按传输线理论模拟计算,Smn2Fe68Si20Co10合金粉末具有最佳的反射损耗,在涂层厚度为1 mm,频率为3.5 GHz时其反射损耗为-4.98 dB.
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