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本文研究了Ｎｉ粉／Ｎｉ－Ｚｎ铁氧体的导电导磁复合材料在１～１０００ＭＨｚ频率范围内的磁导率复合特性。结果表明，Ｎｉ粉含量在≤４７．５％时，复合材料的等效μ′和μ″均符合两相复合材料的一般复合规律；当Ｎｉ粉含量≥６３．３％，频率为５００～１０００ＭＨｚ时，出现复合材料的μ′随频率上升而升高，及复合材料的μ″在一定的频段内大于两单体材料的μ″的反常现象，这是由于在一定的高频作用下，较高含量的Ｎｉ粉因高频涡流损耗所产生的热量使Ｎｉ－Ｚｎ铁氧体μ′和μ″产生变化所致。
In this paper, the magnetic permeability composite properties of Ni / Ni-Zn ferrite conductive and magnetic composite materials in the frequency range of 1 ~ 1000MHz were studied. The results show that the equivalent μ ’and μ “of the composites conform to the general composite rule of the two-phase composites when the content of Ni powder is less than or equal to 47.5%. When the content of Ni powder is more than 63.3% and the frequency is 500-1000MHz , The μ ’of the composite material increases with increasing frequency, and the μ ”of the composite material is larger than the μ“ of the two monomer materials in a certain frequency band. This is due to the fact that under certain high frequency, High content of Ni powder due to high-frequency eddy current loss of heat generated Ni-Zn ferrite μ ’and μ ”produced changes.