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发布时间：2019-11-01

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：SCIE、EI

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.