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沉积温度对纳米碳管-铁粒子复合物的制备及吸波性能影响

刘渊 赖杰 师金锋

刘渊, 赖杰, 师金锋. 沉积温度对纳米碳管-铁粒子复合物的制备及吸波性能影响[J]. 新型炭材料, 2020, 35(4): 428-435. doi: 10.1016/S1872-5805(20)60500-5
引用本文: 刘渊, 赖杰, 师金锋. 沉积温度对纳米碳管-铁粒子复合物的制备及吸波性能影响[J]. 新型炭材料, 2020, 35(4): 428-435. doi: 10.1016/S1872-5805(20)60500-5
LIU Yuan, LAI Jie, SHI Jin-feng. Effects of the deposition temperature on the microwave-absorption performance of Fe/CNT composites[J]. NEW CARBON MATERIALS, 2020, 35(4): 428-435. doi: 10.1016/S1872-5805(20)60500-5
Citation: LIU Yuan, LAI Jie, SHI Jin-feng. Effects of the deposition temperature on the microwave-absorption performance of Fe/CNT composites[J]. NEW CARBON MATERIALS, 2020, 35(4): 428-435. doi: 10.1016/S1872-5805(20)60500-5

沉积温度对纳米碳管-铁粒子复合物的制备及吸波性能影响

doi: 10.1016/S1872-5805(20)60500-5
基金项目: 重庆市基础科学与前沿技术研究专项资助(cstc2017jcyjAX0078).
详细信息
    通讯作者:

    刘渊,讲师,博士.E-mail:liuyuanbixue@163.com

  • 中图分类号: TB33

Effects of the deposition temperature on the microwave-absorption performance of Fe/CNT composites

Funds: Chongqing Basic Science and Frontier Technology Research Special Support (cstc2017jcyjax0078).
  • 摘要: 采用金属有机化学气相沉积(MOCVD)工艺,以Fe(CO)5为前驱体,在CNTs表面原位生长纳米级Fe粒子,通过改变沉积温度,调控复合粉体的形貌结构和吸波性能。用X射线衍射仪、场发射电子显微镜、透射电子显微镜和矢量网络分析仪对粉末的结构及电磁性能进行表征并对其吸波性能进行研究。结果表明,随着沉积温度升高(210~240℃),沉积到CNTs表面的Fe粒子逐渐增加;沉积温度过高时(270℃)会造成CNTS表面Fe粒子团聚。通过调节沉积温度,可以调控CNTs-Fe复合粉体的电磁性能。以吸波性能为考察指标,最终确定最佳的沉积温度为240℃。以沉积温度为240℃时所获样品的电磁参数,模拟计算出涂层厚度为2.9 mm时,反射率达到最小值为-28.3 dB,小于-10 dB的吸波带宽最大为6.1 GHz(10.2~16.3 GHz)。
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出版历程
  • 收稿日期:  2020-04-02
  • 修回日期:  2020-07-05
  • 刊出日期:  2020-08-28

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