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Magnetic and Microwave-absorption Properties of Graphite-coated (Fe, Ni) Nanocapsules.
- Source :
- Journal of Materials Science & Technology; Jul2011, Vol. 27 Issue 7, p607-614, 8p
- Publication Year :
- 2011
-
Abstract
- The structure, magnetic and microwave-absorption properties of graphite-coated (Fe, Ni) alloy nanocapsules, synthesized by the arc-discharge method, have been studied. High-resolution transmission electron microscopy shows that the nanocapsules have a core/shell structure with (Fe, Ni) alloy as the core and graphite as the shell. All (Fe, Ni) alloy nanocapsules/paraffin composites show good microwave-absorption properties. The optimal reflection loss (RL) was found for (Fe<subscript>70</subscript>Ni<subscript>30</subscript>)/C nanocapsules/paraffin composites, being −47.84 dB at 14.6 GHz for an absorber thickness of 1.99 mm, while the RL values exceeding −10 dB were found in the 12.4–17.4 GHz range, which almost covers the K<subscript>u</subscript> band (12.4–18 GHz). For (Fe<subscript>70</subscript>Ni<subscript>30</subscript>)/C nanocapsules/paraffin composites, RL values can exceed −10 dB in the 11.4–18 GHz range with an absorber thickness of 1.91 mm, which cover the whole K<subscript>u</subscript> band. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10050302
- Volume :
- 27
- Issue :
- 7
- Database :
- Supplemental Index
- Journal :
- Journal of Materials Science & Technology
- Publication Type :
- Periodical
- Accession number :
- 64087200
- Full Text :
- https://doi.org/10.1016/S1005-0302(11)60115-1