反射损耗
材料科学
碳纳米管
纳米复合材料
微波食品加热
吸收(声学)
复合材料
化学工程
复合数
量子力学
物理
工程类
作者
Li Guo,Liang Sheng,Liming Yu,Kang An,Wei Ren,Xinluo Zhao
标识
DOI:10.1016/j.mseb.2014.12.008
摘要
Single-walled carbon nanotubes were facilely and abundantly synthesized by low-pressure air arc discharge method (LPA-SWCNTs), and CoFe2O4 nanocrystals were synthesized by a nitrate citric acid sol–gel auto-ignition method. The electromagnetic and microwave absorption properties of LPA-SWCNTs, CoFe2O4 nanocrystals and their nanocomposites were investigated. The LPA-SWCNT/CoFe2O4 nanocomposites showed excellent microwave absorption properties. The minimum efficient reflection loss is −30.7 dB at 12.9 GHz for 10 wt% of LPA-SWCNTs in the nanocomposites, and an effective absorption bandwidth with a reflection loss below −10 dB is 7.2 GHz. The Debye equation and impedance matching were introduced to explain the microwave absorption properties. Compared with the single-component materials, the LPA-SWCNT/CoFe2O4 nanocomposites are an excellent candidate for microwave absorbers.
科研通智能强力驱动
Strongly Powered by AbleSci AI