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水泥基复合材料的吸波性能
作者:熊国宣 邓敏 徐玲玲 唐明述 
单位:南京工业大学材料科学与工程学院 南京工业大学材料科学与工程学院 南京工业大学材料科学与工程学院 南京工业大学材料科学与工程学院 南京 210009东华理工学院应用化学系江西 抚州 344000   南京 210009  南京 210009  南京 210009 
关键词:水泥基复合材料  吸波材料  纳米材料  吸波性能  反射率 
分类号:TB332
出版年,卷(期):页码:2004,32(10):1281-1284
DOI:
摘要:
对普通硅酸盐水泥与吸波材料制成的复合材料的吸波性能进行了研究。为军事掩体、军用机场及其它固定军用目标干扰雷达探测找到了一种合适的方法,也为大型建筑物的电磁波防护提供了一种新途径。研究了羰基铁粉、氧化镍和纳米氧化钛3种吸波材料与水泥制成的复合材料的吸波性能,并分析了纳米氧化钛的用量、分散方式及试样厚度对电磁波反射衰减的关系。结果表明:在8~18GHz频率范围内,纳米氧化钛与水泥制成的复合材料的反射率均小于-7dB,在16.24GHz时其反射率达-16.34dB,反射率小于-10dB的带宽达4.5GHz。
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Absorbing electromagnetic wave (EMW) properties of cement-based composites were studied.The composites are made of portland cement and radar absorbing materials in order to search for an appropriate way of martial blindage, aerodrome, et al on disturbing radar and grand building on shielding EMW. The cement-based composites are contained with a carboxide iron powder, nickel oxide and nanometer titanium oxide. Relationship between EMW reflectivity and nanometer TiO_(2) contents, dispersed means, samples' thickness were analysed. The results show that reflectivity of cement-based composites with nanometer titanium oxide is less than -7 dB in 8—18 GHz frequency range . The least reflectivity is -16.34 dB in (16.24 GHz) and bandwidth for -10 dB is 4.5 GHz.
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基金项目:
江苏自然科学基金(DK2003085)资助项目。
作者简介:
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参考文献:
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