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首页> 外文期刊>IEEE Transactions on Magnetics >Clustering Effect on the Frequency-Dependent Magnetic Properties of Fe–Co Micro Hollow Fiber Composites
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Clustering Effect on the Frequency-Dependent Magnetic Properties of Fe–Co Micro Hollow Fiber Composites

机译：聚集效应对Fe-Co微空心纤维复合材料随频率变化的磁性能的影响

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摘要

Composite sheets including Fe-Co magnetic hollow fibers are applicable to near-field electromagnetic wave absorption sheets operating in excess of 1 GHz. To understand the frequency-dependent permeability behavior of composite sheets, the Landau-Lifshitz-Gilbert equation and effective medium theory which are including the effects of the eddy current losses of isolated fibers and magnetostatic correction in high volume fractions can be used. However, the simulation considering only these factors requires a very high damping factor to explain the measured results. Thus, the simulation also needs the consideration of the clustering effect of particles causing the additional eddy current losses. In this paper, a new simulation method for magnetic sheets with clustered particles is proposed to improve an understanding of changes in the high-frequency properties of magnetic composite sheets due to the clustering effect.
机译：包括Fe-Co磁性中空纤维的复合片材适用于工作在超过1 GHz的近场电磁波吸收片材。要了解复合材料片材随频率变化的磁导率行为，可以使用Landau-Lifshitz-Gilbert方程和有效介质理论，其中包括隔离纤维的涡流损耗和大体积分数中的静磁校正的影响。但是，仅考虑这些因素的模拟需要很高的阻尼系数来解释测量结果。因此，模拟还需要考虑引起额外涡流损耗的粒子的聚集效应。本文提出了一种新的模拟具有簇状粒子的磁性片的方法，以增进对由于簇效应引起的磁性复合片的高频特性变化的理解。

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