高温雷达吸波材料研究现状与展望

“薄、宽、轻、强”已经不能完全满足新型武器装备对雷达吸波材料提出的耐高温、抗氧化、高强度及高韧性等新要求。高温雷达吸波材料受到广泛关注, 本文首先综述了C、ZnO、SiC三类高温吸收剂研究现状, 主要介绍了它们吸波性能改进途径及电磁参数的温度响应机理; 然后对比了涂覆型与结构型高温吸波材料的特点; 在此基础上, 阐述了连续纤维增强陶瓷基复合材料作为高温结构吸波材料的优势、研究现状及存在的问题; 最后, 提出了高温吸波材料未来潜在的发展方向。

Research Status and Outlook of High Temperature Radar Absorbing Materials

Traditional radar adsorbing materials characterized by thin broad, light and strong can not fully satisfy requirements of advanced weapons with heat resistance, anti-oxidation, high strength and fracture toughness. Recently, high temperature radar absorbing materials have attracted much attention. Research progresses of three high temperature absorbers, including C, SiC and ZnO, were reviewed. Then ways to improve their microwave properties and mechanisms of their temperature respond behaviors were introduced. In addition, the coating and structural microwave absorbing materials were compared. On this basis, superiorities, research status and main problems of continuous fibers- reinforced ceramic matrix composites were elaborated. Based on these progresses, potential development directions of high temperature microwave absorbing materials were proposed.