Investigation of reflection coefficient from ferrofluid layer with the addition of MWCNTs under the application of a magnetic field
The possibility of using ferrofluids for shielding electromagnetic radiation at high frequencies is investigated by the method of mathematical modeling. The basis for modeling the reflection coefficient from a flat ferrofluid layer are the frequency characteristics of the complex permittivity measured in the frequency range of 1 kHz - 2 MHz. The complex permittivity spectra of ferrofluids of the following composition were studied: synthetic oil + toner H1010 (magnetite) + multiwall carbon nanotubes (MWCNTs) with concentrations of 0.5 and 0.75 wt.%. The reflection coefficient spectra were calculated in the microwave frequency range for flat samples of different thicknesses with the MWCNT. The plane-wave approximation was used for the calculation. New results proving the prospects of using ferrofluids for solving problems of ensuring electromagnetic compatibility and life safety when using modern high-frequency radio-electronic devices were obtained. Prospects for further research are discussed.
Keywords
magnetic fluid,
magnetite,
MWCNT,
magnetic permeability,
permittivity,
impedance method,
mathematical modeling,
electromagnetic response,
shieldingAuthors
| Pavlova Alexandra A. | Tomsk State University | sandy.surname@gmail.com |
| Suslyaev Valentin I. | Tomsk State University | susl@mail.tsu.ru |
| Korovin Evgeny Yu. | Tomsk State University | korovin_ey@mail.tsu.ru |
| Mazilov Dmitry A. | Tomsk State University | dmitrijmazilov20@gmail.com |
Всего: 4
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