Microwave absorbing properties and magnetic properties of different carbon nanotubes

被引：0
|
作者：
XuChun Gui
KunLin Wang
JinQuan Wei
RuiTao Lü
QinKe Shu
Yi Jia
Chen Wang
HongWei Zhu
DeHai Wu
机构：
[1] Tsinghua University,Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Department of Mechanical Engineering
[2] Tsinghua University,Department of Materials Science and Engineering
来源：
Science in China Series E: Technological Sciences | 2009年 / 52卷
关键词：
carbon nanotubes; microwave absorbing properties; magnetic properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The microwave absorbing properties and magnetic properties of as-grown Fe-filled carbon nanotubes (CNTs), annealed Fe-filled CNTs, and multi-walled CNTs were studied. Vibrating sample magnetometer results showed that the annealed Fe-filled CNTs have the weakest coercivity and strongest saturation magnetization among the three types CNTs, due to the presence of more ferromagnetic α-Fe nanowires. After annealing, the values increased to 291.0 Oe and 28.0 emu/g and the samples showed excellent microwave absorbing properties. The reflection loss was over 5 dB between 11.6 GHz and 18 GHz with a maximum value of 10.8 dB for annealed Fe-filled CNTs (1.1 wt%)/epoxy composite.
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页码：227 / 231
页数：4
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