Study on absorbing wave of Fe3O4/MWCNTs nanoparticles based on large-scale space

Song, Xinhua; Li, Xiaojie; Yan, Honghao

doi:10.1007/s10854-019-02806-8

Cited by 6 publications

(2 citation statements)

References 31 publications

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“…The study of wave absorption is limited to the description of the millimeter scale. To further verify the wave absorption effect of particles in large-scale space, Song et al − have synthesized Fe 3 O 4 nanoparticles and carbon nanotubes by the ball milling method as well as calculated and simulated their static wave absorption effect in large-scale space. The preliminary research results verify that the wave absorption effect of Fe 3 O 4 /MWCNTs nanocomposite material applied in the centimeter band of large-scale space radar wave is feasible.…”

Section: Introductionmentioning

confidence: 99%

Study on Large-Scale Spatial Dynamic Absorption of Fe₃O₄@SiO₂ Shell–Core and Nano-Fe₃O₄ Magnetic Particles

Song

Zhao

et al. 2021

ACS Appl. Electron. Mater.

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Research on the dynamic wave absorption of particles dispersed in a large-scale space has an important practical value in the military field. In this study, Fe3O4@SiO2 magnetic core–shell composite particles and nano-ferroferric oxide particles obtained by improving the carbonyl iron in two ways are dispersed in a large-scale space of 3 m and their dynamic absorbing characteristics are studied. First, simulation showed the relationship between the concentration of Fe3O4@SiO2 magnetic core–shell composite particles and nano-Fe3O4 particles dispersed in large-scale space with time. Then, we combine the strong disturbance equivalent theory to derive its dynamic equivalent electromagnetic parameters εeff′ and μeff′. Second, simulation calculated the electromagnetic loss of Fe3O4@SiO2 magnetic core–shell composite particles at a frequency of 2–18 GHz to be 1.00–39.92 W and the electromagnetic loss of nano-Fe3O4 particles to be 0.40–11.59 W. Finally, we further analyze the absorption loss mechanism of Fe3O4@SiO2 core–shell and Fe3O4 nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Study on Large-Scale Spatial Dynamic Absorption of Fe₃O₄@SiO₂ Shell–Core and Nano-Fe₃O₄ Magnetic Particles

Song

Zhao

et al. 2021

ACS Appl. Electron. Mater.

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“…Therefore, the coaxial ring compressed from the aerogel fiber filled with wax can approximately simulate the electromagnetic parameters of the aerogel fiber. Then, the equivalent relative permittivity and equivalent relative permeability of the aerogel fibers (treated as particles when estimating) dispersed in air at a certain concentration are calculated by the strong fluctuation theory (Figure 5a, eqs S6−S8), 29 and their microwave absorption performance is roughly estimated by the classical metal-backed model and transmission line theory (Figure 5b). The details of the estimation are shown in eqs S9−S10 and Figure S13.…”

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Carbonized Kevlar Nanofiber/Carbon Nanotube/Magnetic Nanoparticle Hybrid Aerogel Fibers for Microwave Absorption

Yuan

Lyu

et al. 2023

ACS Appl. Nano Mater.

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Traditional passive jamming media always suffer from high density and impedance mismatch, which have restricted them from being directly utilized as microwave absorbing materials. Herein, carbonized Kevlar nanofiber/carbon nanotube/ magnetic nanoparticle (CKNF/CNT/MNP) hybrid aerogel fibers with low apparent density (0.12 g/cm 3 ) and adjustable electromagnetic parameters are fabricated for microwave absorption. The minimum reflection loss (RL min ) of the aerogel fibers reaches −59 dB at 14.8 GHz, and the effective absorption bandwidth (EAB) reaches the whole Ku-band with 1.8 mm thickness. In addition, the aerogel fibers can be further developed into microwave absorptive smoke, which exhibits a wide microwave absorption frequency (5.5−15.5 GHz).

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Study on the mechanism of large-scale microwave absorption of ferroferric oxide coated with nano-SiO2

Song

Wang

Haiyang

et al. 2021

J Mater Sci: Mater Electron

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Study on absorbing wave of Fe3O4/MWCNTs nanoparticles based on large-scale space

Cited by 6 publications

References 31 publications

Study on Large-Scale Spatial Dynamic Absorption of Fe₃O₄@SiO₂ Shell–Core and Nano-Fe₃O₄ Magnetic Particles

Study on Large-Scale Spatial Dynamic Absorption of Fe₃O₄@SiO₂ Shell–Core and Nano-Fe₃O₄ Magnetic Particles

Carbonized Kevlar Nanofiber/Carbon Nanotube/Magnetic Nanoparticle Hybrid Aerogel Fibers for Microwave Absorption

Study on the mechanism of large-scale microwave absorption of ferroferric oxide coated with nano-SiO2

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Study on absorbing wave of Fe3O4/MWCNTs nanoparticles based on large-scale space

Cited by 6 publications

References 31 publications

Study on Large-Scale Spatial Dynamic Absorption of Fe3O4@SiO2 Shell–Core and Nano-Fe3O4 Magnetic Particles

Study on Large-Scale Spatial Dynamic Absorption of Fe3O4@SiO2 Shell–Core and Nano-Fe3O4 Magnetic Particles

Carbonized Kevlar Nanofiber/Carbon Nanotube/Magnetic Nanoparticle Hybrid Aerogel Fibers for Microwave Absorption

Study on the mechanism of large-scale microwave absorption of ferroferric oxide coated with nano-SiO2

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Study on Large-Scale Spatial Dynamic Absorption of Fe₃O₄@SiO₂ Shell–Core and Nano-Fe₃O₄ Magnetic Particles

Study on Large-Scale Spatial Dynamic Absorption of Fe₃O₄@SiO₂ Shell–Core and Nano-Fe₃O₄ Magnetic Particles