SiC纤维及其复合材料吸波性能研究进展  

Research Progress on Wave Absorption Properties of SiC Fiber and Its Composites

作　　者：俞婷友 金丹[1] 尹洪峰[1] 汤云 任小虎 袁蝴蝶[1] 孙可为[1] YU Tingyou;JIN Dan;YIN Hongfeng;TANG Yun;REN Xiaohu;YUAN Hudie;SUN Kewei(College of Materials Science and Engineering,Xi′an University of Architecture&Technology,Xi′an 710055,China)

机构地区：[1]西安建筑科技大学材料科学与工程学院,西安710055

出　　处：《硅酸盐学报》2024年第6期2131-2147,共17页Journal of The Chinese Ceramic Society

摘　　要：研发适用于不同复杂环境的高性能吸波材料对于军事和民用领域均具有重要意义。SiC纤维具有高强度、高模量、耐高温、耐腐蚀和电导率可调节等优点,且在极端环境下也能保持良好的性能,在吸波领域具有巨大应用潜力。本综述阐述了SiC纤维的吸波机理,综合评述了改善SiC纤维吸波性能的4种途径,介绍了SiC纤维增强吸波复合材料的研究进展。在此基础上,对SiC纤维及其复合材料在吸波领域的发展进行了展望。With the rapid development of electronic information technology and the 5G,wireless electronic communication technologies and related products based on electromagnetic wave emission,transmission,and processing become popular.However,the consequent electromagnetic radiation and interference are serious,affecting human-being health and environment.Also,,the survival and penetration capabilities of weapon systems require minimizing radar cross-sections to achieve electromagnetic stealth with the continuous advancement of modern warfare radar detection technologies.The adoption of electromagnetic wave-absorbing materials currently represents the most effective and feasible approach to mitigate electromagnetic pollution and realize electromagnetic invisibility goals.For the dual needs of civil and defense applications,the development and production of high-performance electromagnetic wave absorbents becomes a hot research topic.Moreover,high-performance absorbing materials meet the basic requirements for traditional absorbents of"light weight,strong absorption,thin thickness,and wide band",and possess properties like high-temperature resistance,corrosion resistance,etc.,to adapt to different complex environments.SiC fibers have attracted extensive attention due to their superior properties of low density,high strength,high modulus,high-temperature resistance,oxidation resistance,and corrosion resistance.SiC fibers have a tremendous application value in various extreme environments,including nuclear reactors,aeroengines,aircraft nozzles,etc..Moreover,as a wide bandgap semiconductor material,SiC fibers also possess the advantage of tunable electrical resistivity,providing possibilities for their functional application in electromagnetic wave absorption.However,the electromagnetic absorption performance of conventional SiC fibers is far from ideal due to the presence of some issues such as single loss mechanism and impedance mismatch.It is thus necessary to improve the electromagnetic wave absorption capabilities of SiC

关 键 词：碳化硅纤维 吸波性能 阻抗匹配 电磁损耗 纤维增强复合材料 

分 类 号：TQ343.6[化学工程—化纤工业]