基于核壳结构材料的电磁参数调制及吸波性能研究

第六届海内外中华青年材料科学技术研讨会（2015）——CIP/ZnO electromagnetic functional composites with core-shell structure were prepared by chemical precipitation method, and then the morphology, structure and electromagnetic properties in 2-18GHz were characterized by X-ray diffraction, scanning electron microscopy and vector network analyzer, respectively. In process by controlling the conponent ratio between core and shell, it has been found that the more ZnO particles were coated on the CIP surface, the smaller electromagnetic parameters become. Based with the Electromagnetic Wave Absorption(EMWA) Theory, the composites could prepare EMWA buliding coating by monolayer design, the theoretical simulation result show that the minimum RL of CIP/ZnO composites is -10dB, better than former CIP particles, exhibiting excellent EMWA properties in 2-18GHz. The magnetic loss of CIP and the dielectric loss of ZnO were the main mechanisms of EMWA for the CIP/ZnO composites, which could be used for architectural space electromagnetic radiation protection.

关键词： core-shell structure;electromagnetic properties;Electromagnetic Wave Absorption Theory 第六届海内外中华青年材料科学技术研讨会（2015）

主讲人：王明铭 机构：中国建筑材料科学研究总院

时长：0:09:11 年代：2015年