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首页> 外文期刊>Journal of Materials Chemistry, C. materials for optical and electronic devices >Effect of magnetic fillers on the electromagnetic properties of CaCu3Ti4O_(12)-epoxy composites within the 2-18 GHz range
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Effect of magnetic fillers on the electromagnetic properties of CaCu3Ti4O_(12)-epoxy composites within the 2-18 GHz range

机译：磁性填料对2-18 GHz范围内CaCu3Ti4O_（12）-环氧树脂复合材料电磁性能的影响

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摘要

The electromagnetic properties of the CaCu3Ti4O_(12) (CCTO)-magnetic particles-epoxy composite in the frequency range of 2-18 GHz are reported in this paper. The results showed that both the dielectric loss and the magnetic loss of the CCTO-epoxy composite were lower, and the dielectric constant was nearly independent of frequency over the measured frequency range. In order to improve, the microwave absorption of the CCTO-epoxy composite, soft magnetic particles (barium ferrite, Fe-Si-Al and carbonyl iron flakes) were introduced. The effect of the magnetic fillers on the electromagnetic properties of the CCTO-epoxy composites within the 2-18 GHz range was also investigated. The experimental results showed that the complex permittivity and permeability of the composites were dependent on the type of filler and the frequency band, and the increasing rates of the real and imaginary parts with respect to the types of fillers were all different. These different rates can have a great effect on the thickness and microwave absorption in the design of single-layer microwave absorbers.
机译：本文报道了CaCu3Ti4O_（12）（CCTO）-磁性颗粒-环氧复合材料在2-18 GHz频率范围内的电磁性能。结果表明，CCTO-环氧树脂复合材料的介电损耗和磁损耗均较低，并且介电常数几乎与所测频率范围内的频率无关。为了改进，引入了CCTO-环氧树脂复合材料，软磁颗粒（铁氧体钡，Fe-Si-Al和羰基铁片）的微波吸收。还研究了磁性填料对2-18 GHz范围内CCTO-环氧树脂复合材料电磁性能的影响。实验结果表明，复合材料的复介电常数和磁导率取决于填料的类型和频带，实部和虚部相对于填料类型的增加率均不同。在单层微波吸收器的设计中，这些不同的速率会对厚度和微波吸收产生很大影响。

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