Enhanced electromagnetic wave absorption of olive-like Fe3O4/Fe@C core-shell nanocomposite in Ku band

Enhanced electromagnetic wave absorption of olive-like Fe3O4/Fe@C core-shell nanocomposite in Ku band

Core-shell structure is an effective approach to modulate the impedance matching behaviour and induce polarization relaxation at the interface for the high-performance electromagnetic wave absorption (EMWA) materials. Herein, core-shell structures of Fe3O4–Fe@C (FFC) were successfully developed by h...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of alloys and compounds 2020-04, Vol.821, p.153275, Article 153275
Hauptverfasser: Li, Xiang, Yu, Lunzhou, Xiang, Zhen, Cui, Erbiao, Xiong, Juan, Wang, Xiao, Lu, Wei
Format: Artikel
Sprache:eng
Schlagworte:
Absorption
Core-shell structure
Dielectric loss
Electromagnetic radiation
Electromagnetic wave absorption
Fe3O4–Fe@C
Heat treatment
Hydrothermal method
Impedance matching
Iron oxides
Magnetic anisotropy
Nanocomposites
Phase composition
Polarization characteristics
Shells
Superhigh frequencies
Thermal decomposition
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Core-shell structure is an effective approach to modulate the impedance matching behaviour and induce polarization relaxation at the interface for the high-performance electromagnetic wave absorption (EMWA) materials. Herein, core-shell structures of Fe3O4–Fe@C (FFC) were successfully developed by hydrothermal and thermal decomposition methods. The results showed that the phase composition, microstructure and EMWA performance were tailored by the heat treatment process. The optimized FFC hybrid exhibited a minimum reflection loss (RL) value of −56.3 dB with a matching thickness of 1.99 mm, and the effective bandwidth (RL  
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2019.153275