期刊
MATERIALS AND MANUFACTURING, PTS 1 AND 2
卷 299-300, 期 -, 页码 739-742出版社
TRANS TECH PUBLICATIONS LTD
DOI: 10.4028/www.scientific.net/AMR.299-300.739
关键词
Arc-discharge; Fe(Al2O3) Polyhedral Nanocapsules; Microwave-absorbing properties
Al2O3 coated polyhedral Fe nanocapsules were prepared by arc-discharging a Fe-Al(8at%Al) alloy. High-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy, and network analyzer were employed to investigate the microstructures, compositions and electromagnetic properties (2-18GHz). The reflection loss R(dB) of the nanocapsules reaches to -50.5dB at 7.90Hz with a 3mm thickness, and EM absorption properties(RL<-20dB) in the 5.2 similar to 16.1GHz range with thickness range of 1.67-4.7mm. The excellent Microwave-absorption properties of as-prepared nanocapsules are ascribed to shape anisotropy and core/shell structure.
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