摘要
研究了纳米吸波材料与硅酸盐水泥复合材料的吸波性能和力学性能,讨论并分析了纳米氧化钛的用量、分散方式、试样厚度对电磁波反射衰减的关系和纳米氧化钛对水泥基复合材料的力学性能影响。实验结果表明: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,且其力学性能明显优于水泥净浆。
The absorbing EMW properties and mechanical properties of cement-based composites, which are made of portland cement and nanometric absorbing materials, were studied. The relation-ship between electromagnetic wave reflectivity and nanometer TiO2 contents, dispersed means, samples thickness were discussed and analysed. And nanometer titanium oxide effect on mechanical properties of cement-based composites were discussed. The experiment data show that reflectivity of cement-based composites with nanometer titanium oxide is less than -7 dB in 8-18 GHz frequency range. The minimum reflectivity is -16.34 dB at 16.24 GHz, and bandwidth for -10 dB is 4.5 GHz. Its mechanical properties precede cement paste.
出处
《功能材料与器件学报》
EI
CAS
CSCD
北大核心
2005年第1期87-91,共5页
Journal of Functional Materials and Devices
基金
江苏省自然科学基金资助(DK2003085)
关键词
水泥基复合材料
纳米吸波材料
吸波性能
力学性能
cement-based composites
nanometric absorbing material
absorbing properties
mechanicalproperties
