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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ɑ-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,Sm2Fe68Si20Co10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。
SmxFe70-xSi20Co10 (x = 0, 1, 2) magnetic alloys were prepared by vacuum quenching process. The microstructures and amorphous formability of SmSiFe-based quenched alloys were investigated by SEM, XRD and VSM after high energy ball milling. Magnetic properties, the use of Agilent PNA 8363B microwave vector network analyzer test the alloy powder electromagnetic parameters. The results show that the SmFeSiCo alloy powder has a flat morphology after high-energy ball milling. The variation of the Sm content has little effect on the phase structure of the alloy powder, and both of them are ɑ-Fe (Co) At x = 2, the alloy has the lowest coercivity of 87.291 Oe and the saturation magnetization Ms increases correspondingly. At x = 2, the alloy has the highest saturation The magnetization value is 142.955 emu / g. According to the theory of transmission line simulation, Sm2Fe68Si20Co10 alloy powder has the best reflection loss, and its reflection loss is -4.98 dB at the coating thickness of 1 mm and the frequency of 3.5 GHz.