【作者】 李宝毅； 刘顺华；

【Author】 LI Bao-yi LIU Shun-hua (School of Material Science & Engineering,Dalian University of Technology,Dalian 116085,China)

【机构】 大连理工大学材料科学与工程学院；

【摘要】 对水泥基掺杂混合吸波剂复合材料的吸收性能进行了研究,在水泥基体中分别填充不同比例的炭黑 /二氧化锰、炭黑/铁粉、炭黑/铁氧体并进行吸波性能测试,结果表明试样在2．6～18GHz 频段内具有更强的吸收性能,＞10dB 的带宽最多可达12．4GHz．并用阻抗匹配和谐振理论解释了吸波剂含量和种类对吸收性能及吸收峰的影响．更多还原

【Abstract】 The absorbing property of cement-based composites filled with mixed absorbents was studied. The absorbing property of the cement composites filled with carbon black(CB)/manganese dioxide,CB/iron powder,CB/ferrite in different scales was tested and the result showed that the samples have more better absorbency which bandwidth excelling 10rib reached 12.4 GHz at best in 2.6-18 GHz.The impedance matching and resonance theories are used to explain how the contents and classes of absorbents affect the absorbing property and the value of absorbing peak.更多还原