期刊
NANOSCALE
卷 6, 期 8, 页码 3967-3971出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr04087a
关键词
-
类别
资金
- National Natural Science Foundation of China [51171185, 51102244]
- International Cooperation Plan of Science and Technology [2012DFA51300]
- National Basic Research Program of China, Ministry of Science and Technology China [2012CB933103]
Microwave absorption properties of core double-shell FeCo/C/(x) BaTiO3 nanocomposites were investigated in the 1-18 GHz frequency range. High resolution transmission electron microscopy studies reveal the core double-shell type nanocomposite with FeCo nanoparticles as the center, while carbon and BaTiO3 are the inside and the outside shells, respectively. Enhanced relative permittivity made the core double-shell FeCo/C/(x) BaTiO3 nanocomposites with better electromagnetic impedance matching than that of a FeCo/C and BaTiO3 mixture. Reflection loss (RL) values of FeCo/C/(20 wt%) BaTiO3-paraffin composite are almost double those of the FeCo/C-paraffin composite at the absorbent thickness from 2 to 7.5 mm due to enhanced interfacial effects. The RL value of the FeCo/C/(20 wt%) BaTiO3-paraffin composite is -41.7 dB at 11.3 GHz at the absorbent thickness of 2 mm and a broad absorption bandwidth of 5.1 GHz (RL values exceeding -10 dB) covers the 9.4-14.5 GHz frequency range.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据