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Journal of Nanoparticle Research

Erschienen in:

01.11.2009 | Research Paper

Magnetic properties, complex permittivity and permeability of FeNi nanoparticles and FeNi/AlO_x nanocapsules

verfasst von: X. G. Liu, D. Y. Geng, C. J. Choi, J. C. Kim, Z. D. Zhang

Erschienen in: Journal of Nanoparticle Research | Ausgabe 8/2009

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Abstract

Structures, surface composition, magnetic properties, and electromagnetic properties of FeNi nanoparticles and FeNi/AlO_x nanocapsules were investigated. The compositions of these nanoparticles/nanocapsules were found to be quite different from those of the corresponding targets. Al atoms could promote the evaporation of Fe atoms and suppress the evaporation of Ni atoms in the arc discharge process. The protective AlO_x shell can effectively increase the resistivity of FeNi nanocapsules and suppress the growth of FeNi nanoparticles and reduce their magnetization. For FeNi nanoparticles/nanocapsules, the same natural resonance appearing at 6.4 GHz originates mainly from magnetic FeNi cores. FeNi nanoparticles/nanocapsules exhibit promising possibility for application as a new type of electromagnetic wave shield/absorbent.

Vorheriger Artikel Aquatic toxicity evaluation of TiO2 nanoparticle produced from sludge of TiCl4 flocculation of wastewater and seawater

Nächster Artikel Co–CoO nanoparticles prepared by reactive gas-phase aggregation

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Titel: Magnetic properties, complex permittivity and permeability of FeNi nanoparticles and FeNi/AlO x nanocapsules
verfasst von: X. G. Liu
D. Y. Geng
C. J. Choi
J. C. Kim
Z. D. Zhang
Publikationsdatum: 01.11.2009
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 8/2009
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-008-9575-9

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