会议论文详细信息
International Scientific and Technical Youth Conference "Perspective Materials of Constructional and Medical Purpose"
Microwave electromagnetic characteristics of polymeric composite materials containing carbonyl iron and MWCNT/Ferrites
材料科学;医药卫生
Kuleshov, G.E.^1^2 ; Badin, A.V.^1^2 ; Sbrodov, A.V.^2 ; Bilinskiy, K.V.^2
Laboratory of Radiophysical and Optical Methods of Exploring the Surrounding Environment, National Research Tomsk State University, Tomsk, Russia^1
Department of Radioelectronics, Faculty of Radiophysics, National Research Tomsk State University, Tomsk, Russia^2
关键词: Carbonyl iron;    Electromagnetic characteristic;    Frequency dependence;    Microwave frequency ranges;    Polymeric composite materials;   
Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/511/1/012021/pdf
DOI  :  10.1088/1757-899X/511/1/012021
来源: IOP
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【 摘 要 】

Microwave electromagnetic characteristics of radiomaterials based on carbonyl iron with the addition of multi-walled carbon nanotubes or ferrites were investigated. On the basis of the obtained measurement results, the frequency dependences of the reflection coefficients for the samples of composite materials were calculated. Comparison of calculations with the results of the experiment is presented. Adding 2 wt.% multi-walled carbon nanotubes to a composite with 40 wt.% carbonyl iron is equivalent to increasing the concentration of carbonyl iron to 60 wt.%, which significantly reduces the consumption of materials and the weight of the composite. The results obtained make it possible to characterize the materials under study as effective absorbers of electromagnetic radiation in the microwave frequency range.

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