超轻型微球介电吸波材料性能及应用研究  

Study on Properties and Applications of Dielectric Absorbing Materials for Ultra-lightweight Microspheres

作　　者：李登臣 黄玲 杨树豪 LI Dengchen;HUANG Ling;YANG Shuhao(Rainbow UAV Technology Co.LTD.,Beijing 100074;Beihang University,Beijing 100191)

机构地区：[1]彩虹无人机科技有限公司,北京100074 [2]北京航空航天大学,北京100191

出　　处：《宇航材料工艺》2024年第4期57-62,共6页Aerospace Materials & Technology

摘　　要：为了实现吸波材料轻量化,本文通过设计材料微观结构及合成方法,将碳材料的介电特性与空心结构的低密度特性相结合,开发出一种超轻型材料,制备的碳空心球(C@air)材料具有优良的吸波性能。基于该材料分别制备吸波板材及可用于隐身飞机机翼前缘的吸波蜂窝芯,并对其进行电磁仿真及雷达反射截面积(RCS)测试,吸波蜂窝芯在同向水平极化下达到-32.3 dB,同向垂直极化下达到-27.2 dB。验证了该材料具有优秀的吸波性能及应用效果,为吸波材料的设计与应用提供思路。In order to achieve lightweight absorbing materials,this paper designs the microstructure and synthesis method of the material to combine the dielectric properties of carbon materials with the low characteristics of hollow structures,and prepared carbon hollow sphere(C@air)material has execellent wave absoroption properties with ultralightweight.Based on this material,absorbing plates and absorbing honeycomb cores that can be used for the leading edge of stealth aircraft wings are prepared,and electromagnetic simulation and radar reflection cross-section(RCS)testing are conducted on them,the horizontal polarization in the same direction reaches-32.3 dB,and the vertical polarization in the same direction reaches-27.2 dB.It is verified that the material has excellent absorbing performance and application effect,and provides ideas for the design and application of absorbing materials.

关 键 词：碳空心球 介电损耗 空心结构 吸波蜂窝芯 

分 类 号：TB33[一般工业技术—材料科学与工程]