期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 703, 期 -, 页码 424-430出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.02.014
关键词
Amorphous carbon nanotubes (ACNTs); Aligned array; BaFe12O19 nanorods (BNRs); Electromagnetic wave absorbing properties
资金
- Specialized Research Fund for the Doctoral Program of Higher Education [20096102120016]
- Natural Science Foundation of China [5157222, 51672221]
- China Aeronautical Science Fund [2014ZF53074]
- Key Science and Technology Program of Shaanxi Province, China [2013K09-03]
- 111 Project [B08040]
Aligned amorphous carbon nanotube (AACNT)/BaFe12O19 nanorod (BNR) composite was prepared by chemical vapor deposition and ball-milling methods. Raman and XRD tests were performed to investigate the microstructures, and the microwave absorbing properties of the as prepared composite were characterized using a vector network analyzer. The experimental results indicated that the mean length of as-prepared ACNT arrays was about 24 mm and the average length of BNRs were about 50 nm. The maximum absorbing peak of AACNTs/BNR composite is -21.5 dB at the frequency of 9.3 GHz. The frequency bandwidth of the reflectivity loss below -10 dB is about 2.5 GHz. AACNTs have both features of amorphous CNTs which have multiple-reflective path inside the tube-wall and crystalline CNTs which have high conductivity. (C) 2017 Elsevier B.V. All rights reserved.
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