摘要
分析了目前高温吸波材料研究面临的问题,指出提高高温吸波材料的高温吸波性能一直都是高温吸波材料研究追求的方向,深入基础研究,认清各种材料微观缺陷在电磁场中的响应及其机理,是进一步提高吸波材料高温吸波性能的主要方向,周期结构吸波材料(包括超材料)的可设计性使得这种材料成为很有希望的高温吸波材料。高温吸波材料研究与应用必须解决的问题是高温吸波材料的氧化、化学反应和扩散。高温吸波涂层研究面临的主要问题是涂层的结合强度和抗热震性。对高温吸波复合材料应用性能的优化往往与其高温吸波性能的优化存在矛盾,应用性能和吸波性能的综合优化成为高温吸波复合材料研究面临的最大难题。与其他同类材料相比,高温吸波材料在具有同样应用性能要求的基础上,增加了高温吸波性能的要求,因此,高温吸波材料比其它同类材料面临更大的挑战。
The problems in researches of high-temperature microwave absorbing materials are discussed. It is indicated that raising absorbance in high temperature has been the goal of researches of high-temperature microwave absorbing materials. The way to further increase the absorbance of high-temperature microwave absorbing materials is in-depth understanding the basic phenomenon and mechanisms of the response of various lattice defects in a material to microwave elec- tromagnetic field. The designable ability of periodical structure microwave absorbing materials, including metamaterial, makes them potential good high-temperature microwave absorbing materials. Oxidation, chemical reaction, and diffusion are problems of research and application of＂ high-temperature microwave absorbing material . As for high-temperature mi- crowave absorbing coatings, bonding strength and thermal shocking resistance are also major problems. Since the measures that optimize the application properties of high-temperature microwave absorbing composites often decrease the microwave absorbance of the material, so comprehensive optimization of application properties and microwave absorbance is the most difficult problem to be solved with high-temperature microwave absorbing composites. Compared with materials with a similar application environment, high-temperature microwave absorbing materials have the same property-requirement for application, in addition to the requirement for good microwave absorbance at high temperatures. Therefore, high-temperature microwave absorbing materials have more degree of difficulty than materials with a similar application environment.
出处
《中国材料进展》
CAS
CSCD
2013年第8期463-472,462,共11页
Materials China
关键词
高温吸波材料
吸波性能
氧化
扩散
应用性能
high-temperature microwave absorbing materials
microwave absorbance
oxidation
diffusion
application Properties
