论文成果
Electromagnetic wave absorption properties of multi-walled carbon Nanotubes-anatase composites in 1-18 GHz frequency
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- 论文类型：期刊论文
- 发表时间：2019-12-01
- 发表刊物：CERAMICS INTERNATIONAL
- 收录刊物：EI、SCIE
- 文献类型：J
- 卷号：45
- 期号：17
- 页面范围：22759-22764
- ISSN号：0272-8842
- 关键字：TiO2; Milling; Functional applications; Impedance
- 摘要：The multi-walled carbon nanotubes (MWCNTs)-anatase composites were prepared by ball-milling method. The influence of milling conditions (dry-milling or wet-milling) on the phases, morphology, dispersion, and electromagnetic wave absorption properties of the samples was studied. After characterization, the results indicated that ball-milling process had little effect on the phase and the grain size of anatase. The dispersion of MWCNTs in MWCNTs-anatase composites for wet-milling was preferable to that for dry-milling. The composites prepared by dry-milling method had an excellent electromagnetic wave absorbing property. The minimum value of RL was -37.3 dB at 6.1 GHz with the thickness of 3 mm, and the effective bandwidth was 6.1 GHz for the thickness in the range of 2-5 mm. Debye relaxation process, eddy current loss, and impedance matching were the main reasons for the electromagnetic wave absorption of the composites. The MWCNTs-anatase composites could be an easy obtained wave absorption materials.
