Enhanced absorption bandwidth in carbon-coated supermalloy FeNiMo nanocapsules for a thin absorb thickness
Document Type
Article
Publication Date
9-17-2010
Abstract
Electromagnetic-wave absorption properties of FeNiMo/C nanocapsules with FeNiMo nanoparticles as cores and carbon as shells have been studied. The FeNiMo/C nanocapsules, synthesized by arc-discharging Fe11Ni 79Mo10 (at.%) alloy in ethanol, exhibited outstanding reflection loss (RL < -20 dB) in the range of 13-17.8 GHz with an absorber thickness of 1.7 mm, and an optimal RL of -64.0 dB was obtained at 13.2 GHz with an absorber thickness of 1.9 mm. The broadest bandwidth (RL < - 10 dB) from 9 to 18 GHz, covering the whole Ku-band (12.4-18 GHz) and almost the whole X-band (9-12.4 GHz), was achieved for a 2 mm layer. The excellent electromagnetic properties are ascribed to the good match between high permeability from the core of FeNiMo nanoparticles and low permittivity from the special core/shell microstructure in the FeNiMo/C nanocapsules. © 2010 Elsevier B.V. All rights reserved.
Publication Source (Journal or Book title)
Journal of Alloys and Compounds
First Page
826
Last Page
830
Recommended Citation
Liu, X., Ou, Z., Geng, D., Han, Z., Wang, H., Li, B., Brück, E., & Zhang, Z. (2010). Enhanced absorption bandwidth in carbon-coated supermalloy FeNiMo nanocapsules for a thin absorb thickness. Journal of Alloys and Compounds, 506 (2), 826-830. https://doi.org/10.1016/j.jallcom.2010.07.085