Enhanced electromagnetic wave absorption performance of SiCN(Fe) fibers by in-situ generated Fe3Si and CNTs

被引：37
|
作者：
Feng, Yurun [1 ,3 ]
Guo, Xue [2 ]
Lu, Junbin [1 ,2 ]
Liu, Jie [2 ]
Wang, Guantong [1 ]
Gong, Hongyu [1 ]
机构：
[1] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China
[2] Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255049, Peoples R China
[3] Univ Padua, Dept Ind Engn, Padua, Italy
来源：
CERAMICS INTERNATIONAL | 2021年 / 47卷 / 14期
关键词：
EMW absorption; In-situ generation; Impedance matching; Dielectric; Magnetic; MICROWAVE-ABSORPTION; CARBON NANOTUBES; LIGHTWEIGHT; COMPOSITES; NANOWIRES;
D O I：
10.1016/j.ceramint.2021.03.296
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：
The SiCN(Fe) fibers with excellent one-dimensional microstructure and electromagnetic wave (EMW) absorption performance were synthesized by combining polymer-derived ceramics (PDCs) method and electrospinning. The in-situ generation of Fe3Si and CNTs by adding ferric acetylacetonate (FA) into the raw materials effectively improved the dielectric properties, magnetic properties and the impedance matching performance of the SiCN (Fe) fibers. The EMW absorption performance of SiCN(Fe) fibers were mainly based on dipole polarization loss, interface polarization loss and eddy current loss. The RLmin value of SiCN(Fe) fibers reached -47.64 dB at 1.38 mm and the effective absorption band (EAB, RL <= -10 dB) reached 4.28 GHz (13.72-18 GHz, 1.35 mm).
引用
收藏
页码：19582 / 19594
页数：13
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