Radar attenuation performance of magnetic expanded graphite aerosol obtained from thermal expansion of stage-1 ferrocene graphite intercalation compounds

The In Situ Preparation of Ni–Zn Ferrite Intercalated Expanded Graphite via Thermal Treatment for Improved Radar Attenuation Property

“…The part through the NZF/EG aerosols will reach the target surface and be reflected by the target to form echo waves. Subsequently, attenuation occurs again when the echo waves come across aerosols on the way back to the radar receiver [ 42 ]. Within NZF/EG aerosols, the attenuation is achieved by multiple absorption and scattering of the incident radar waves.…”

NDR and spin-polarized transport properties of magnetic Fe sandwiched C60-GNR single molecule devices: theoretical insight

“…The TM-sandwiched graphene compounds not only have the inherent advantages of parent graphene and TM, but also exhibit some intriguing properties induced by the graphene-TM coordinate coupling. [45][46][47][48][49][50][51][52][53][54][55] Numerous experimental and theoretical works have already revealed their excellent superconductivity, electrical conductivity, and magnetic properties. [56][57][58][59][60][61][62] Shauloff et al successfully prepared graphene oxide matrices intercalated with cobalt or nickel.…”

An Innovative model of magnetically intercalated expanded graphite for calculating radar attenuation performance at 2–18 GHz

“…Magnetically expanded graphite (MEG) is a promising absorbing material formed by inserting magnetic particles into layers of expanded graphite (EG). It can form a large area of aerosols in the air under the dispersion action of pyrotechnic to attenuate electromagnetic waves [ 13 ]. This absorbing material has three main advantages as follows: (1) It gives full play to the strong natural resonance effect of magnetic particles in this band so that the electromagnetic wave is fully absorbed [ 14 , 15 ]; (2) The combination of magnetic materials and EG with dielectric properties can improve the impedance matching performance of the material, resulting in more incidence of electromagnetic waves into the material [ [16] , [17] , [18] , [19] ]; (3) The multilayer structure of EG also facilitates the multiple reflection of electromagnetic waves between the layers, result in continuously absorption of the electromagnetic waves, thereby improving the attenuation performance [ 20 ].…”

“…When the MEG is used in a form of large-area aerosol, its radar jamming efficiency greatly depends on absorption and scattering functions of each MEG particles, which, however, cannot be obtained by traditional laminate-based measurement methods (such as vector network instrument) [ 26 , 27 ]. Currently, there are some experimental methods that can measure attenuation performance of large-area aerosol, but the absorption and scattering behaviors occurring on the surface and inside of a single particle are not easy to show through experimental methods, which makes it difficult to explain the attenuation mechanism in detail [ 13 , 28 ]. Therefore, it is a good alternative to obtain these two characteristics of single MEG through calculation.…”