以球形羰基铁粉为原料,在不同转速下球磨,比较了不同球磨速度下样品的形貌和静态磁性.将球磨后片状样品以50%体积浓度与石蜡均匀混合制备复合材料,利用同轴线法在0.1~18GHz频率范围内研究其复数磁导率随频率的变化.球磨后片状样品的低频磁导率实部值较未球磨样品明显增大,共振频率向高频方向移动,在1.5~16GHz频率范围内磁导率虚部值增大.将复合材料在磁场内旋转取向,可以近一步提高样品的复数磁导率,其磁导率实部值在0.1GHz时为12.1,在2GHz时为11.1,磁导率虚部最大值为6.2.可见,片状羰基铁粉复合材料是一种好的高频软磁材料. The ball-shaped carbonyl iron powder was used as raw material and ball milled at different rotation speeds to compare the morphology and static magnetic properties of the samples at different ball milling speeds. The flake samples were uniformly mixed with paraffin at 50% volume concentration to prepare composite materials. Line method in the frequency range of 0.1 ~ 18GHz to study the complex permeability change with frequency.Low-frequency magnetic permeability of the flaky samples after milling the real part of the value was significantly increased than the non-milling samples, the resonant frequency to the high-frequency direction of movement in the The imaginary part of the permeability increases in the frequency range from 1.5 to 16GHz.The composite material can be rotated in the magnetic field to increase the complex permeability of the sample in a further step.The real part of permeability is 12.1 at 0.1GHz, 2GHz, 11.1, the maximum imaginary part of the permeability of 6.2. It can be seen, sheet carbonyl iron powder composite is a good high-frequency soft magnetic material.