航空科学技术2025，Vol.36Issue(12)：51-58,8.DOI:10.19452/j.issn1007-5453.2025.12.007
轻质双层结构复合材料的吸波性能研究
Research on the Microwave Absorbing Performance of the Lightweight Composite with Double Layer Structure
摘要
Abstract
With the continuous improvement of modern military technology,high-speed aircraft require high flight speed and good survivability.Thus,developing novel materials with low density and excellent radar stealth performance holds significant science and application value.Graphene has potential applications in the field of microwave-absorbing materials,due to its lightweight and corrosion-resistant.However,its high conductivity can cause an impedance mismatch between the material and free space,which can reduce the absorbing performance.Based on the above problems,this work utilized alumina with a low dielectric constant as a controlling impedance-matching component and graphene as a microwave attenuation component,to prepare a series of alumina-graphene/paraffin(Al2O3-G)composites with the double-layer structure.The microwave absorbing performance of the composite was controlled by changing alumina and graphene contents.The maximum reflection loss value of the composite material reached-42.01 dB at 6.4 GHz with an effective absorption bandwidth of 2.56 GHz(8.24～10.64 GHz),when the alumina and graphene contents were 30 wt％and 5 wt％,respectively.The Al2O3-G composite has potential application prospects in the field of microwave absorption due to excellent reflection loss and effective absorption bandwidth.关键词
吸波材料/雷达隐身/石墨烯/氧化铝/结构设计Key words
microwave absorbing materials/radar stealth/graphene/alumina/structural design分类
航空航天引用本文复制引用
李建军,夏乾善,崔鹏,王新达..轻质双层结构复合材料的吸波性能研究[J].航空科学技术,2025,36(12):51-58,8.基金项目
航空科学基金(2023Z056077001) Aeronautical Science Foundation of China(2023Z056077001) （2023Z056077001）
