Electromagnetic-wave absorption properties of FeCo nanocapsules and coral-like aggregates self-assembled by the nanocapsules

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	Electromagnetic-wave absorption properties of FeCo nanocapsules and coral-like aggregates self-assembled by the nanocapsules
	X. G. Liu; D. Y. Geng; S. Ma; H. Meng; M. Tong; D. J. Kang; Z. D. Zhang
	2008
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	104 期号:6
摘要	FeCo nanocapsules with FeCo alloy as core and amorphous Al(2)O(3) as shell have been synthesized by a modified arc-discharge technique. Three-dimensional coral-like aggregates are self-assembled by the nanocapsules in the arc-discharge process. The FeCo nanocapsules are ferromagnetic at room temperature. The electromagnetic-wave absorption properties of FeCo nanocapsules were investigated in the frequency range from 2 to 18 GHz. A reflection loss exceeding -20 dB was obtained in the frequency range of 5.2-15.9 GHz for absorber thicknesses of 2-4 mm. An optimal reflection loss of -44.8 dB was reached at 12.8 GHz for an absorber thickness of 3 mm. As a result, these FeCo nanocapsules may be applied in high-frequency electromagnetic-wave absorption. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2982411]
部门归属	[liu, x. g.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;liu, xg (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;liuxg@imr.ac.cn
关键词	Microwave-absorption Nanocomposites Nanoparticles Nanotrees Range
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WOS记录号	WOS:000260119300141
引用统计	被引频次：42[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32971
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. G. Liu,D. Y. Geng,S. Ma,et al. Electromagnetic-wave absorption properties of FeCo nanocapsules and coral-like aggregates self-assembled by the nanocapsules[J]. Journal of Applied Physics,2008,104(6).
APA	X. G. Liu.,D. Y. Geng.,S. Ma.,H. Meng.,M. Tong.,...&Z. D. Zhang.(2008).Electromagnetic-wave absorption properties of FeCo nanocapsules and coral-like aggregates self-assembled by the nanocapsules.Journal of Applied Physics,104(6).
MLA	X. G. Liu,et al."Electromagnetic-wave absorption properties of FeCo nanocapsules and coral-like aggregates self-assembled by the nanocapsules".Journal of Applied Physics 104.6(2008).