Electromagnetic and microwave absorption properties of carbon fibers coated with carbonyl iron
Electromagnetic and microwave absorption properties of carbon fibers coated with carbonyl iron
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DOI：
10.1007/s10854-015-3247-1
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发表时间：
2015-09-01
影响因子：
2.8
通讯作者：
Li, Ersen
中科院分区：
文献类型：
--
作者：
Zhang, Zeyang;Liu, Xiangxuan;Li, Ersen
采用金属有机物化学气相沉积（MOCVD）法制备了新型的碳纤维表面镀铁（CF@Fe）复合材料，并将其用作微波吸收材料。SEM、EDS和XRD研究表明，MOCVD方法可以在CF上产生均匀的铁涂层。与普通CF相比，CF@Fe复合材料具有较高的电阻率和磁损耗，且随着Fe含量的增加，电阻率和磁损耗逐渐增大。当CF@Fe质量分数为8%时，在13.4GHz处的最小反射损耗（RL）为-38dB，相应厚度为2.5mm，在8-15 GHz频率范围内的RL超过-10dB，厚度为1.5- 3.0mm。
The current paper discusses the preparation of novel Fe-coated carbon fiber (CF@Fe) composites using metal organic chemical vapor deposition (MOCVD) for use as microwave absorbing materials. SEM, EDS, and XRD studies show that the MOCVD method can produce a uniform coating of iron on the CFs. Compared with common CF, the CF@Fe composites have higher resistivity and magnetic loss, which gradually increase with increasing iron content. At an CF@Fe weight fraction of 8 %, the minimum reflection loss (RL) is -38 dB at 13.4 GHz and a corresponding thickness of 2.5 mm. An RL exceeding -10 dB is obtained in the frequency range of 8-15 GHz and a thickness of 1.5-3.0 mm. The results indicate that the prepared composite has excellent electromagnetic absorption properties with lightness.