新型纳米复合隐身材料的研究进展

综述了国内外目前用于隐身技术的多种吸波材料,重点介绍了纳米复合隐身材料的隐身机理与制备方法,并指出了隐身材料的发展趋势。     

新型纳料复合隐身材料的研究进展

综述了国内外目前用于隐身技术的多种吸波材料，重点介绍了纳米复合隐身材料的隐身机理与制备方法，并指出了隐身材料的发展趋势。     

宽频轻质吸波涂料的研究与应用进展

综述了目前国内外宽频轻质吸波涂料的研究动态,详细介绍了具有发展前景的空心微珠吸波材料、碳纳米管吸波材料、导电高聚物吸波材料、纳米吸波材料和智能隐身材料等新型宽频轻质吸波涂料的最新研究状况,并对雷达隐身材料应用技术的未来做了展望。     

纳米铁氧体吸波材料研究进展

介绍了吸波材料的特点,纳米铁氧体的吸波机理,以及纳米铁氧体的制备方法.综述了纳米铁氧体吸波材料的研究进展,对纳缮米复合铁氧体吸波材料的前景进行了展望.     

纳米吸波材料的研究现状与发展趋势

评述了纳米吸波材料的特性及吸波原理,介绍了纳米铁氧体吸波材料、纳米金属吸波材料、纳米陶瓷吸波材料、纳米导电高分子吸波复合材料、碳纳米管吸波材料、纳米复合吸波材料研究现状及发展情况,指出了纳米复合吸波材料是未来纳米吸波材料的研究重点。     

吸波涂层的制备及其与红外隐身涂料的兼容性研究

依据阻抗匹配原理制备了一种3层雷达吸波涂层，并在吸波涂层表面喷涂一定厚度的可见光、红外伪装涂料，比较了喷涂伪装涂料前后涂层吸波性能的变化。实验结果表明，三层结构的设计对提高涂层的吸波性能具有重要的影响，将电介质材料与磁介质材料复合所制备的吸波涂层具有厚度薄、面密度低、吸波频带宽的特点。雷达吸波涂层与可见光、红外隐身涂层复合后，其吸波性能基本保持不变。     

吸波涂层材料的研究进展

吸波材料在军事和民用领域具有非常重要的意义,而提高吸波材料性能的关键是提升吸收剂的电磁性能和优化吸波材料的制备工艺。在讨论吸波材料的吸波原理之后,详细介绍了铁氧体、高温吸波材料、纳米吸波材料、复合吸波材料及导电高分子吸波材料这五种吸波涂层材料的最新研究进展,并分析各种涂层的主要特点,最后指出吸波材料向纳米化、复合化、性能可调的方向发展。     

隐身吸波涂料概述

隐身涂料普遍应用于军事领域，重点介绍了隐身吸波涂料中粘结剂和吸收剂的种类，阐述了纳米吸波材料、导电高分子吸波涂料、多晶纤维吸波涂料、等离子体吸波涂料等的最新研究现状，对吸波涂料的发展趋势进行了概括。     

激光隐身涂料的应用研究进展

概述了激光隐身涂料的应用与研究现状,重点介绍了纳米材料应用于激光隐身涂料中的隐身原理以及制备方法、特点和应用现状.材料纳米化后,具有极好的吸波特性,具有频带宽、兼容性好、质量小和厚度薄等特点,而且纳米粉体对电磁波的透射率及吸收率比微米粉体要大得多.使用纳米材料可以制备出与可见光、红外、雷达波兼容性良好的激光隐身涂料.多频段兼容的隐身涂料也将是隐身涂料的发展趋势,而纳米隐身涂料是一个重要的发展方向.     

结构型吸波复合材料的研究进展

结构型吸波复合材料具有吸波性能好、质量轻、可承载等优点,已成为当代吸波材料的主要发展方向,对隐身材料的设计和制造有着重要意义。本文从纤维增强体的截面形状和制备工艺、纤维的铺排结构和夹层复合结构、吸波剂改性等影响吸波复合材料吸波性能的主要因素出发,系统地总结了结构型吸波复合材料的最新研究热点和成果,并指出吸波复合材料的未来发展方向。     

聚氨酯基雷达吸波材料研究进展

在对聚氨酯涂料、泡沫和常用吸收剂进行介绍的基础上,总结了目前聚氨酯基雷达吸波材料的应用与研究进展,指出聚氨酯泡沫基吸波材料由于具有密度小、成型快、稳定性好等性能而有望成为未来吸波材料发展的重点。     

Hollow porous Ni@SiC nanospheres for enhancing electromagnetic wave absorption

Multi-component and a large number of non-homogeneous interface absorbers have been proven to be the preferred choice of electromagnetic wave (EMW) absorption materials. Herein, hollow porous Ni@SiC nanospheres (HPNS) were successfully constructed by combining a carbothermal reduction preparation strategy and subsequent electroless plating process. The heterogeneous dielectric/magnetic multi-component benefit to excellent EMW absorption properties through forming multiple polarizations, dielectric loss, and magnetic loss effects. Particularly, the HPNS at the optimal ratio with a low filler loading of 20 wt% exhibits the minimum reflection loss (RL_min) value of −62.39 dB at 13.28 GHz and the maximum effective absorption bandwidth (EAB_max) is up to 5.36 GHz (12.64–18 GHz), and the corresponding thin matching thicknesses are 1.96 mm and 1.80 mm, respectively. Furthermore, the maximum radar cross section (RCS) reduction of HPNS over PEC reaches 26.02 dB m² (1.96 mm) under far-field conditions, which means that the prepared HPNS is extraordinarily promising for practical applications. This work guides the preparation of high-performance EMW absorbers as well as radar stealth materials.     

碳纤维结构吸波材料及其吸波碳纤维的制备

碳纤维结构吸波材料是一类多功能复合材料,具有承载和减小雷达反射截面的双重功能,是一种非常有发展前途的吸波材料。碳纤维结构吸波材料以其优异的力学性能和隐身特性已大量应用于隐身技术。本文讨论了碳纤维结构吸波的应用,碳纤维结构吸波材料的类型及其结构型式设计,探讨了吸波波对碳纤维进行掺杂改性,制备出吸波性能优良的碳纤维、改变碳纤维的截面形状和大小,对碳纤维进行表面改性以及对碳纤维进行掺杂改性,制备出吸波性     

雷达吸波材料的研究现状及发展前景

首先阐述了吸波材料的研究意义,然后综合讨论了吸波材料的工作原理、类型以及研究现状, 最后介绍了吸波材料在军事方面的应用及未来的发展趋势。     

Carbon–ceramic nanofiber embedded with LDHs-derived composites for enhanced electromagnetic wave absorption

Hydrotalcite-like layered double hydroxides (LDHs) exhibit distinct microstructures and atomic compositions, and thus, they are expected to be superior microwave absorbing materials. However, preparation of excellent absorbers from LDHs is still a challenging task. Herein, NiCo-LDHs@SiC/C heterostructure composites were designed and then heat-treated to obtain NiCo@SiC/C nanofibers. Finally, with a synergistic effect of dielectric and magnetic losses, the minimum reflection loss value of the sample could reach −56.3 dB with a thickness of 2.7 mm, and the maximum effective bandwidth absorption reached 6.8 GHz at 2.3 mm. Moreover, the simulated radar cross-section indicates that the NiCo@SiC/C nanofibers well suppress the electromagnetic scattering from metal trench structure. This result further indicates the outstanding microwave absorption properties of the nanofibers. This study contributes to the development of LDH materials in the field of wave-absorbing materials, and is an important guideline for exploring efficient microwave absorbers with fibrous structure.     

Polymer matrix composites as broadband radar absorbing structures for stealth aircrafts

Stealth or low observable technology has been one of the most critical requirements for military aviation sector to counter the ever-advancing target detection technologies worldwide. Among many, Radar, which operates in the broadband spectrum, is one of the principal threats, which measures the radar cross section (RCS) of the aircraft. Hence, researchers are putting immense efforts to develop low RCS materials based on polymer matrix composites (PMCs) called as radar absorbing structures (RAS), to replace highly reflective conventional metallic aircraft structures. Though many researchers have been successful in RAS realization using radar absorbing materials (RAMs) as fillers, this review article reckons the state-of-the-art advanced research on the realization of RAS using a combination of RAMs and multilayered grid devices such as, frequency selective surfaces, circuit analog absorbers, metamaterials, and so on, and their effect on mechanical properties to deliver superior performance RAS for stealth aircrafts. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 47241.     

航天用吸波材料的制备及研究进展

简述了吸波材料的研究意义,综述了涂覆型吸波材料的研究现状和应用进展,重点介绍了单层电磁损耗型、多层介质匹配吸收型、干涉(谐振)型、电路模拟型、等离子体吸收型、手征型、导电高聚物型、泡沫夹芯型、贴片型和表面波吸波材料的主要特点和最新研究现状,最后对涂覆型吸波材料的发展趋势进行了展望。     

Barium hexaferrite reinforced polymeric dye composite coatings for radar absorbing applications

Radar is an electronic and electromagnetic system that uses radio waves to detect and locate objects. Against this system, especially for certain military applications focused on defence and security, radar absorbing materials are required. There are many advanced techniques used for absorbing optimisation. In this study barium hexaferrite was used to produce a radar absorbing composite material. In this sense, an epoxy dye was converted to a radar absorbing coating. Barium hexaferrite powders produced by means of sol–gel method were added to a polymer matrix (dye) with different loading levels to see the concentration dependence of particles' radar absorbing effect. Different types of samples were prepared by coating glass substrates with a polymer matrix loaded with various amount of barium hexaferrites. Samples were characterized by Fourier Transform Infrared (FTIR) and Scanning Electron Microscope‐Energy Dispersive Spectroscopy (SEM‐EDS). Under applied magnetic field, the produced composites exhibited the hysteresis loops of the ferromagnetic behavior with vibrating sample magnetometer (VSM). The saturation magnetization and coercivity of nanocomposites were obtained. In addition, radar absorbing test were applied as a primary objective of this research with a network analyzer. It was concluded that the barium hexaferrite reinforced composites have electromagnetic properties which indicates potential application in high performance adsorbing materials and it was indicated that increasing barium hexaferrite powder amount in the composites leads to increase radar absorbing performance. POLYM. COMPOS., 35:602–610, 2014. © 2013 Society of Plastics Engineers     

结构设计及气泡型填料对水声吸声材料的影响综述

综述了水声吸声材料的结构设计现状以及气泡型填料改性水声吸声材料的研究概况,介绍了有望作为水声吸声材料的高分子树脂颗粒吸声材料的研究进展,指出了新型水下吸声材料的发展趋势。     

雷达吸波聚合物基体材料研究概况

介绍了雷达吸波材料吸波原理,归纳总结了近几年雷达吸波聚合物基体材料的研究现状,主要介绍了涂覆型、贴片型和结构型三种类型聚合物基体材料的研究概况及其优缺点,并在此基础上指出了今后吸波聚合物基体材料的发展方向。