期刊
MATERIALS TODAY COMMUNICATIONS
卷 34, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.mtcomm.2022.105297
关键词
Nanocomposites; Magnetic properties; Numerical analysis
In this study, the characteristics of applying gamma-Fe2O3 NPs in large-scale space for electromagnetic wave absorption and stealth were explored using gamma-Fe2O3 NPs as an example. The physical properties of gamma-Fe2O3 NPs were characterized, and the wave absorption and attenuation characteristics were studied under different moisture content. The results indicate that the absorption attenuation decreases with decreasing concentration of gamma-Fe2O3 NPs. The absorption attenuation of gamma-Fe2O3 NPs with different water content decreases as the water content increases. The absorption mechanism mainly involves dielectric loss, magnetic loss caused by tunneling effect, interface polarization, and multiple scattering.
Nanomaterials have a wide range of application scenarios in electromagnetic wave absorption and stealth. In this paper, gamma-Fe2O3 NPs (NPs) are taken as an example to study the characteristics of their application in large-scale space. The physical properties of gamma-Fe2O3 NPs were characterized, and the wave absorption and attenuation characteristics of gamma-Fe2O3 NPs dispersed in large scale space with five different moisture content (0%, 5%, 10%, 20%, 40%) were studied. The results show that the absorption attenuation of gamma-Fe2O3 NPs decreases with the decrease of its concentration. The absorption attenuation of gamma-Fe2O3 NPs with different water content decreases with the increase of water content. The absorption mechanism of gamma-Fe2O3 NPs dispersing in large scale space mainly includes dielectric loss and magnetic loss caused by tunneling effect, interface polarization and multiple scattering.
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