陶瓷基复合材料天线罩制备工艺进展

天线罩是高超音速寻的制导导弹前端的重要部件,必须具有防热、透波、承载等多种功能。介绍了高超音速导弹天线罩候选材料二氧化硅、氮化硼和氮化硅的基本性能,综述了颗粒增强、纤维增强和叠层结构的陶瓷基复合材料天线罩的制备工艺与力学、介电性能,分析了陶瓷基复合材料天线罩研究存在的问题,指出了发展方向。     

氮化硼透波材料的研究进展与展望

本文从高超音速导弹天线罩材料的性能要求和现有天线罩材料的优缺点出发,介绍了氮化硼陶瓷的优异性能,综述了近年来氮化硼透波纤维和氮化硼透波复合材料的研究进展及应用,并对氮化硼透波材料未来的发展趋势作了展望.     

高温宽频带陶瓷导弹天线罩研究进展

概述了宽频带天线罩透波的基本原理及国内外高温宽频带导弹天线罩的发展状况.重点综述了国外陶瓷夹层材料的制备、性能及电性能设计方面的研究,指出了我国在高温宽频带天线罩研制方面存在的问题,在此基础上对我国高温宽频带透波材料的前景进行了展望.     

无机天线罩材料的研究进展

对高马赫数导弹天线罩材料的性能要求进行了评述，综述了国外天线罩材料的研究进展，特别是重点介绍了美国等军事强国近年来研制的天线罩材料的温度、强度、介电特性以及工艺性能。分析了我国在该领域的研究现状，并提出了今后的发展方向。     

陶瓷天线罩材料的研制进展

从导弹技战术发展趋势和要求,阐述了天线罩材料的发展历程和研制进展,论述了氮化硅材料体系的研制工艺,二氧化硅和石英基纤维增强材料体系的几种制备工艺和应用,介绍了陶瓷基复合陶瓷夹层天线罩材料的研制进展和应用前景。     

石英陶瓷天线罩材料研究进展

石英陶瓷材料具有优良的介电、热学和力学等综合性能,是目前导弹天线罩的主要应用材料。从石英陶瓷天线罩材料的制备方法、性能、制备新工艺、防潮和检测等方面,回顾了国内外的研究进展和现状,并对其未来发展方向进行了展望。     

多孔陶瓷材料在天线罩上的应用进展

现代导弹的发展对天线罩的性能提出了更高的要求,多孔陶瓷材料有着优良的介电性能及耐热性能,是理想的天线罩用材料;介绍了多孔陶瓷材料的分类方法及制备工艺,综述了几种体系多孔陶瓷材料在天线罩上的应用进展情况,并指出了今后多孔陶瓷材料在天线罩领域的重点研究方向。     

聚酰亚胺泡沫塑料的研制

随着宇航技术的发展,用于厘米波和分米波波段超高频电磁场的某些部件,诸如雷达天线罩等用的材料,提出了轻质高强、耐高电磁波穿透能力、低介电损耗和耐高温等性能的要求。目前,在导弹雷达天线罩的制造中,一般采用陶瓷和微晶玻璃及其泡沫材料。但这种无机材料的介电常数都     

高速导弹天线罩用无机透波材料

根据导弹天线罩材料的选材原则，综述了几种候选天线罩材料的主要特性、各自的优缺点及某些改进措施。重点介绍了现在获得广泛应用的熔融石英陶瓷和有着广阔应用前景的氮化硅材料。     

陶瓷天线罩无机涂层的研究进展

通过在天线罩表面制备涂层,可以有效提高天线罩的多方面性能,因此天线罩涂层的研究具有重要的工程价值.本文综述了天线罩无机涂层的制备工艺以及研究进展,指出天线罩涂层研究正朝着提高天线罩基体材料的防潮、抗烧蚀、耐冲刷和耐高温性能以及拓展频带等集多功能于一体的方向发展.     

High temperature ceramic radomes (HTCR) – A review

An electromagnetically transparent, structurally robust and environmentally resistant enclosure of radar antenna for ground based systems to modern avionics in military aircraft and missiles is called as radome. Radome materials are classified based on: (i) type of function - surface-based or flight-mode and (ii) speed of operation - subsonic, supersonic to hypersonic. The desired properties of these materials are low dielectric constant and low loss factor in addition to its capacity to withstand the high temperature of operation. Composite laminates of glass or aramid fibre reinforced polymeric resins are radome material candidates for applications in subsonic range. However, ceramics are the only viable option for military aerospace applications such as a fighter jet travelling at Mach 3 or an advanced hypersonic missile speeding up to Mach 5. This review outlines the hand-full of ceramic materials already in application as radome materials like high-purity-alumina, pyroceram, slip-cast-fused-silica, their processing technology, electromagnetic and mechanical properties, advantages and disadvantages with respect to advanced military vehicles. Use of silicon nitride based radome materials, that has exceptional mechanical strength and thermal stability up to 1400 °C is illustrated with respect to reaction bonded silicon nitride, hot pressed silicon nitride, silicon oxynitride, sialon and their composites. Design of new generation radome materials was conceptualized and discussed as applicable to silicon nitride and related ceramics, wherein incorporation of varied degree of porosity improves electromagnetic properties, simultaneously, maintaining the required mechanical strength. Multilayer and graded porosity and its influence on electromagnetic properties were briefly discussed. Si₃N₄ ceramics having controlled porosity leading to optimum electromagnetic and mechanical properties produced through systematic processing is proposed as the futuristic high temperature radome material for supersonic applications.     

高温透波陶瓷材料研究进展

透波陶瓷材料已成为高超声速飞行器天线罩、天线窗等部件的关键候选材料。因此,如何有效提升透波陶瓷材料的耐温、透波、承载等特性是发展高超声速飞行器的关键技术之一。本文针对高超声速飞行器对透波陶瓷材料的技术要求,阐述了透波陶瓷材料的发展历史,着重对现有透波陶瓷材料体系及其透波特性测试方法和原理的研究历史和现状进行了全面回顾,并提出今后的发展方向。本文旨在为未来新一代高超声速飞行器的设计提供参考。     

Dielectric and mechanical properties of hypersonic radome materials and metamaterial design: A review

This review paper examines ten current ceramic radome materials under research and development and provides a comprehensive overview of available high temperature and high frequency data from literature. An examination of metamaterials for radio-frequency transparent radomes is given and our preliminary experimental results of a high-temperature metamaterial design are presented. The next-generation hypersonic vehicles’ radome temperatures will exceed 1000℃ and speeds will exceed Mach 5. An ideal radome material will have a high flexural strength, low dielectric constant and loss tangent, and high resistance to thermal shock and corrosion. The microstructural effect on the dielectric and mechanical properties and the effects of environmental factors such as rain are discussed. The impact of metamaterial structure on key radome factors such as boresight error, gain, and polarization is examined. After examining the associated benefits with the use of metamaterials, our preliminary results for a potential high-temperature metamaterial design are presented.     

陶瓷天线罩材料的研究进展

综述了陶瓷天线罩材料的研究概况,分析了天线罩材料设计的基本原则,对增强结构和材料体系等技术问题进行了探讨,最后展望了陶瓷天线罩材料的发展趋势.     

Analysis of existing radioparent refractory materials,composites and technology for creating high-speed rocket radomes. part 1. analysis of the level of property indices and limiting possibilities of radioparent inorganic refractory materials

Radioparent materials that exist in the world, that may be used in the production of the radome of high-speed zenith guided rocket fairings are analyzed. The main physicotechnical indices are provided for these materials and the future for their application in radome production is indicated.     

高性能机载雷达罩VARTM工艺用树脂/纤维浸润性研究

研究了采用真空辅助树脂传递模塑(VARTM)工艺制造高性能机载雷达罩的TDE-85环氧树脂、间苯二甲酸二烯丙酯(DAIP)和E-51环氧树脂三种材料体系的浸润性能。结果表明,三种材料体系中,DAIP体系具有较好的浸润性能,粘度较低,最适合采用VARTM工艺制备雷达罩。     

高性能机载雷达罩材料的研究进展

高性能机载雷达罩是先进战斗机的重要组成部分，其性能取决于材料，并直接影响到飞机的作战效能，笔者对高性能机载雷达罩所应用的材料即树脂基体，增强材料，夹层材料，胶膜材料，防静电与防腐蚀材料，吸波材料以及防雷击材料进行了综述，并提出了未来的发展方向。