基于铁磁微丝－碳纤维增强树脂基复合材料的反射型超构表面研究

将超材料与传统结构材料集成是实现超材料在工程中应用的一条重要途径。本项目通过在表面引入基于铁磁微丝的反射型超构表面- - 一种单层的超材料结构，使碳纤维增强树脂基复合材料获得对微波频段电磁波的调制功能，进而实现多种微波频段内的功能器件，包括带隙可调超薄吸波层、反常反射面、可变焦平面反射镜以及非接触式应力测量系统等。通过本项目的实施可以制备具有良好力学性能且可以对电磁波进行调制的功能化复合材料，实现功能材料与结构材料的复合。本项目一方面扩展超材料的应用范围；另一方面，实现对于传统结构材料的功能化改造。

Metamaterials has attracted tremendous interests in recent years due to the properties not existing in nature, such as negative refraction index，anomalous reflection/refraction and so on. However， few work has been done to integrate metamaterials into conventional structural materials to broaden their applications. We proposed a reflective metasurface based on amorphous ferromagnetic microwires aligned on carbon fiber reinforced composites, which is able to modify the microwave performance of the composites. Several functions can be achieved, such as, anomalous reflective surface, band-adjustable reflective flat focusing lens and noncontact stress measurement system. The study, on one hand, will broaden the applications of metamaterials, and one the other hand, will provide the conventional structural materials some novel properties.