CAJ | 학술논문

采用非自耗真空电弧熔炼与高能球磨相结合的方法制备出了 Fe63 Co20 Ce13 Al4合金粉末。借助X射线衍射仪(XRD)、扫描电镜(SEM)和网络矢量分析仪等，研究了球磨40、50、60和70h 的Fe63 Co20 Ce13 Al4合金粉末的相结构、形貌以及微波吸收性能。结果表明，随着球磨时间的增加，吸收峰向低频移动，吸收峰值减小，吸波频带变宽。球磨60h 后的粉末扁平化效果较好，当吸波涂层厚度 d=1.8mm时，在4.5GHz 处最小吸收峰值到达-10.8dB。当吸波涂层厚度增加，吸收峰向低频移动，吸收峰值变大，吸波带宽变窄。
채용비자모진공전호용련여고능구마상결합적방법제비출료 Fe63 Co20 Ce13 Al4합금분말。차조X사선연사의(XRD)、소묘전경(SEM)화망락시량분석의등，연구료구마40、50、60화70h 적Fe63 Co20 Ce13 Al4합금분말적상결구、형모이급미파흡수성능。결과표명，수착구마시간적증가，흡수봉향저빈이동，흡수봉치감소，흡파빈대변관。구마60h 후적분말편평화효과교호，당흡파도층후도 d=1.8mm시，재4.5GHz 처최소흡수봉치도체-10.8dB。당흡파도층후도증가，흡수봉향저빈이동，흡수봉치변대，흡파대관변착。
The powders were obtained by arc smelting and high energy ball milling method.The phase struc-ture,morphology,and microwave absorbing properties of the powder which milling different time (40,50,60, 70h)were researched by XRD,SEM and vector network analyzer.The results show that with increasing mill-ing time,the absorption peaks move to the low frequency,the value of absorption peaks decreases,and the ab-sorbing band widens.Powders after milling 60h obtain better flattened effect.When absorbing coating thick-ness d=1.8mm,the minimum absorption peak value was -10.8dB at 4.5GHz.With the absorbing coating thickness increasing,the absorption peaks shift to lower frequency,the value of absorption peaks increases,and the absorbing bandwidth narrowing.