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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