A nanocomposite of dual-phase Fe/TiCN wrapped in nitrogen-doped carbon with magnetic and dielectric characters for superior microwave absorption

被引：3
|
作者：
Wang, Dongxing [1 ]
Javid, Muhammad [2 ]
Saleem, Muhammad Farooq [3 ]
Wu, Min [1 ]
Shi, Yuli [1 ]
Rauf, Abdul [4 ]
Xu, Xiaohui [5 ]
Dong, Xinglong [6 ]
机构：
[1] Ningbo Univ Technol, Inst Mat, Ningbo 315016, Peoples R China
[2] Hangzhou Dianzi Univ, Inst Adv Magnet Mat, Coll Mat & Environm Engn, Hangzhou 310012, Peoples R China
[3] Chinese Acad Sci, GBA Branch Aerosp Informat Res Inst, Guangzhou 51070, Peoples R China
[4] Univ Management & Technol, Dept Chem, Lahore, Pakistan
[5] Liaoning Normal Univ, Haihua Coll, Dalian 116400, Peoples R China
[6] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2023年 / 49卷 / 08期
关键词：
Arc -discharge method; Core@shell nanocapsules; Magnetic Fe; Dielectric TiC 0; 7; N; 0; 3; Impedance matching; Reflection loss; ELECTROMAGNETIC-WAVE ABSORPTION; BROAD-BAND; NANOPARTICLES; NANOCAPSULES; PERFORMANCE; COMPOSITES; NANOWIRES; DISCHARGE; CHAINS;
D O I：
10.1016/j.ceramint.2022.12.076
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：
A careful approach to the optimization of magnetic and dielectric losses in nanomaterials can improve the electromagnetic wave absorption loss performance for certain microwave absorption applications. In this study we prepared dual core (Fe/TiCN) coated with nitrogen (N) doped carbon shell nanocomposite by arc-discharge method under mix atmospheres of working gases and with varying elemental compositions. Among all nano -composites, (Fe/TiC0.7N0.3)@N-C dual-core@ N-doped shell nanocomposite exhibits enhanced microwave ab-sorption. Owing to the novel dual-core@ N-doped shell structure and numerous defects induced by doping N in carbon shells, an improved dielectric relaxation in composite is observed and the minimum reflection loss was reached-44.36 dB at 5.3 GHz for 4.8 mm thickness.
引用
收藏
页码：12240 / 12250
页数：11
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