用于可调谐微丝超复合材料的微丝/碳纳米管混杂纤维的合理设计
A rational design of microwire/CNT hybrid fiber for tunable microwire metacomposites
摘要：
超复合材料是一种具有超材料特性的工程复合材料。我们提出了一种由铁磁微丝和碳纳米管组成的混合填料的设计，以实现可调的微丝超复合材料。等离子体频率和双负区带宽对碳纳米管涂层的依赖性很强。诸如涂层厚度、均匀性、形态和微丝数量等因素共同影响双负特性的形成。基于碳纳米管涂层的层状结构，利用等离子体频率公式和分裂-闭合路径模型阐明了碳纳米管对负ε和负μ的调制作用。
英文摘要：
Metacomposites are a type of engineering composite materials with metamaterial properties. We propose a design of hybrid filler consisting of ferromagnetic microwire and carbon nanotube to enable a tunable microwire metacomposite. There shows a sophisticated dependency of plasma frequency and bandwidth of double negative region on the carbon nanotube coating. Factors such as coating thickness, uniformity, morphology and number of microwires conspire to the formulation of the double negative characteristics. The intricate role of CNT on modulating negative ε and μ is elucidated by the plasma frequency formula and split-close paths model based on the layer-like structure of CNT coating.
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