Structural and electrodynamic characteristics of the spinel-based composite system

被引：24
|
作者：
Trukhanov, A. V. [1 ,2 ]
Tishkevich, D. I. [1 ,2 ]
Timofeev, A. V. [1 ]
Astakhov, V. A. [1 ]
Trukhanova, E. L. [1 ,2 ]
Rotkovich, A. A. [2 ]
Yao, Yuan [3 ]
Klygach, D. S. [4 ]
Zubar, T. I. [2 ]
Sayyed, M. I. [5 ,6 ]
Trukhanov, S. V. [1 ,2 ]
Kostishin, V. G. [1 ]
机构：
[1] Natl Univ Sci & Technol MISiS, Moscow 119049, Russia
[2] NAS Belarus, Sci Pract Mat Res Ctr, Minsk 220072, BELARUS
[3] Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers &, Harbin 150001, Peoples R China
[4] South Ural State Univ, Chelyabinsk 454080, Russia
[5] Univ Tabuk, Renewable Energy & Environm Technol Ctr, Tabuk 47913, Saudi Arabia
[6] Isra Univ, Fac Sci, Dept Phys, Amman 1162, Jordan
来源：
CERAMICS INTERNATIONAL | 2024年 / 50卷 / 12期
基金：
俄罗斯科学基金会; 中国国家自然科学基金;
关键词：
Ferrites; Spinels; Magnetic oxides; Microstructure; Electrodynamic characteristics; Electromagnetic absorption; MAGNETIC-PROPERTIES;
D O I：
10.1016/j.ceramint.2024.03.241
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Two- and tree-component spinel-polymer composites were produced by thermal pressing. The initial components were chosen as CoFe2O4 and Ni0.4Cu0.2Zn0.4Fe2O4 spinels that were produced using the sol-gel method. The ratio between spinel phases varied from 1:3 to 3:1. As a polymer, fluorinated ethylene propylene was used. The concentration of the spinels in the polymer matrix was fixed at 20 mass.%. Using XRD, SEM, and high-frequency spectroscopy, the correlation between the composition, structure, and electrodynamic characteristics of composites was established. It was found that the parameters of the unit cell of ferrite fillers do not change when filling the polymer. The RL values for the initial CoFe2O4/FEP and Ni0.4Cu0.2Zn0.4Fe2O4/FEP were in the range of -14.5 ... -24.2 dB and -10.4 ... -14.1 dB, respectively, which is lower than for ferrites without a polymer matrix. The maximum values of RL (as a module) were marked for CoFe2O4/FEP. Obtained values of the reflection loss coefficient in the range of 5-10 GHz open broad perspectives for the development of materials for electromagnetic absorption and 5G technology.
引用
收藏
页码：21311 / 21317
页数：7
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