Open AccessРадиопоглощающие свойства феррит-полимерных композитов поливиниловый спирт/Ni-Zn феррит
Author(s) -
В. Г. Костишин,
И. М. Исаев,
Р. И. Шакирзянов,
Д. В. Салогуб,
А.Р. Каюмова,
В.К. Олицкий
Publication year - 2022
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2022.01.51862.217-21
Subject(s) - materials science , reflection loss , ferrite (magnet) , composite material , permittivity , spinel , polyvinyl alcohol , reflection (computer programming) , electrical conductor , electromagnetic radiation , spectral line , composite number , dielectric , optics , metallurgy , optoelectronics , physics , astronomy , computer science , programming language
The electromagnetic and radio-absorbing characteristics of ferrite-polymer composites with conductive inclusions based on polyvinyl alcohol are investigated. The Ni-Zn spinel ferrite powder of 2000NN grade with composition Ni0.32Zn0.68Fe2O4 was used as filler. It is shown that the obtained composites are effective absorbers in the frequency range of 2⸺5 GHz with peak reflection loss less than –20 dB. Through the analysis of the permittivity spectra and permeability spectra, as well as the calculated reflection loss spectra, critical factors of the electromagnetic wave absorption in obtained composites are established.