학술논문
Polymer Nanocomposites Based on Nanosized Substituted Ferrites (NiZn) 1−x Mn x Fe 2 O 4 on the Surface of Carbon Nanotubes for Effective Interaction with High-Frequency EM Radiation.
Document Type
Article
Author
Source
Subject
*CARBON nanotubes
*POLYMERIC nanocomposites
*MULTIWALLED carbon nanotubes
*FERRITES
*ABSORPTION coefficients
*RADIATION
*REFLECTANCE
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Language
ISSN
1996-1944
Abstract
To create materials that interact effectively with electromagnetic (EM) radiation, new nanosized substituted ferrites (NiZn)1−xMnxFe2O4 (x = 0, 0.5, and 1) anchored on the surface of multi-walled carbon nanotubes (CNTs) have been synthesized. The concentration of CNTs in the (NiZn)1−xMnxFe2O4/CNT system was from 0.05 to 0.07 vol. fractions. The dielectric and magnetic characteristics of both pristine (NiZn)1−xMnxFe2O4 ferrites and (NiZn)1−xMnxFe2O4/CNT composite systems were studied. The introduction of (NiZn)1−xMnxFe2O4/CNT composites into the amorphous epoxy matrix allows to tailor absorbing properties at the high-frequency by effectively shifting the maximum peak values of the absorption and reflection coefficient to a region of lower frequencies (20–30 GHz). The microwave adsorption properties of (NiZn)1−xMnxFe2O4/0.07CNT–ER (x = 0.5) systems showed that the maximum absorption bandwidth with reflection loss below −10 dB is about 11 GHz. [ABSTRACT FROM AUTHOR]