Ni—SiO2复合材料吸波性能研究  

Research on Wave Absorption Property of Ni-SiO2 Composite

作　　者：李丽光[1] 谭业发[1] 章善彪[1] 刘树杰[1] 庄铁栓[1] 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京210007

出　　处：《工兵装备研究》2007年第5期32-35,共4页Engineer Equipment Research

摘　　要：随着电子工业的发展，电磁环境日益恶化，增加了对吸波材料研究的必要性和迫切性。制备了Ni—SiO2复合吸波材料，研究了其在8～18．4GHz范围内的吸波性能及机理。研究结果表明：Ni—SiO2复合材料在17．15GHz达到最低反射率-14．6dB，小于-10dB的吸收带宽为7GHz，通过电损耗、磁损耗和散射效应实现对电磁波能量的衰减。通过与Ni的复合使不具有吸波性能的SiO2材料实现了宽频吸收，大幅度提高了Ni—SiO2复合材料的吸波性能。With the development of electronic industry, the electromagnetic environment becomes worse and worse which increases the necessity and imminence of study on wave absorption material. By preparing the Ni-SiO2 composite, the wave absorption property and mechanism of it at the frequency range from 8GHz to 18.4 GHz are studied. The results show that the Ni-SiO2 composite reaches the lowest reflection -14. 6dB at the frequency of 17.15GHz, and the bandwidth for -10dB is 7GHz. The energies of electromagnetic waves can be effectively attenuated through electric losses, magnetic losses and scattering effect. The wideband absorption is realized by the composite of Ni and SiO2. The wave absorption property of Ni SiO2 composite is improved greatly.

关 键 词：Ni—SiO2 复合材料 吸波 

分 类 号：TB34[一般工业技术—材料科学与工程]