| 核壳结构复合吸波材料研究进展 |
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| 作者姓名： | 黄威 魏世丞 梁义 王博 黄玉炜 王玉江 徐滨士 |
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| 作者单位： | 陆军装甲兵学院装备再制造技术国防科技重点实验室, 北京 100072 |
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| 摘 要： | 在综述电磁波材料吸波工作原理的基础上, 讨论了核壳结构材料在吸波领域的优势.重点介绍了近年来不同类型核壳结构复合吸波材料的研究进展, 主要包括铁氧体型、磁性金属微粉及其氧化物型、陶瓷型、导电聚合物型、碳系材料型等核壳结构复合吸波材料.同时对不同类型的核壳结构吸波材料的制备方法、组织结构和微波吸收性能进行了详细的归纳评述.最后对核壳结构复合吸波材料的发展趋势进行了展望, 主要包括多层核壳结构, yolk-shell结构以及与其他材料结构相复合的特殊结构, 为进一步研究核壳结构复合吸波材料提供参考.
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| 关 键 词： | 核壳 吸波 结构 复合 性能 |
| 收稿时间： | 2018-11-21 |
Research progress of core-shell composite absorbing materials |
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| Affiliation: | National Key Laboratory for Remanufacturing, Academy of Army Armored Forces, Beijing 100072, China |
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| Abstract: | With the rapid development of anti-stealth technology and the iterative renewal of firepower destruction weapons, the battlefield survivability of modern weapons and equipment has been severely tested. In the modern warfare of over-the-horizon, radar detection technology is currently the most widely used method; therefore, reducing the radar echo signal is the most important factor to improve the stealth ability of weapon equipment. Generally, stealth technology is divided into structural stealth and material stealth. Reasonable shape structure design can reduce the radar cross section (RCS) value of a weapon equipment. However, due to the high cost of shape structure and the easy reduction of the comprehensive performance of equipment, there are many limitations in application. Because the stealth technology of materials is relatively simple and the design difficulty is relatively low, the research and application of stealth materials are popular and have been well explored. Although the traditional absorbing materials have the advantages of low cost, good flexibility, and easy processing, they also have the defects of high density, narrow working frequency band, and limited strength. Core-shell microwave absorber is a composite multiphase structure with a spherical particle as the core and one or more layers of heterogeneous materials coated on the outer surface. Because of its unique structure and excellent performance, it is a promising material to solve the existing problems. On the basis of reviewing the working principle of microwave absorbing materials, the advantages of core-shell structure materials in the field of microwave absorbing were discussed. This paper mainly introduced the research progress of different types of core-shell structure microwave absorbing materials explored in recent years as well as summarized and commented on their preparation methods, structure, and microwave absorbing properties; these materials are mainly based on ferrite, magnetic metal powder and its oxide, ceramic, conductive polymer, and carbon series materials. Finally, the development trend of core-shell structure mircrowave absorbing materials was predicted, including multi-layer core-shell structure, yolk-shell stucture and special structure combined with other structures, whisch can provide reference for futher study of core-shell shtucture composite absorbing materials. |
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