Synthesis of Fe3O4@SiO2@C/Ni microspheres for enhanced electromagnetic wave absorption

被引：7

作者：

Jia, Zhen ^{[2
]}

Zhang, Jingyun ^{[1
]}

Lv, Fanglin ^{[1
]}

Hou, Yunxi ^{[1
]}

Liu, Jianfeng ^{[2
]}

Yu, Shitao ^{[1
]}

Liu, Shiwei ^{[1
]}

Li, Lu ^{[1
]}

Liu, Yue ^{[1
]}

机构：

[1] Qingdao Univ Sci & Technol, Coll Chem Engn, Key Lab Multiphase Flow React & Separat Engn Shand, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China

[2] AVIC Res Inst Special Struct Aeronaut Composites, 19 Jiqi Rd, Jinan 250000, Peoples R China

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2023年 / 622卷

关键词：

Core-shell structure; Microwave absorption; TUNABLE MICROWAVE-ABSORPTION; FACILE SYNTHESIS; HOLLOW MICROSPHERES; COMPOSITES; NANOPARTICLES; FREQUENCY; CATALYST; HYBRIDS; DESIGN;

D O I：

10.1016/j.jnoncrysol.2023.122659

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：

With the rapid development of electromagnetic and radar technology, military stealth technology has become an essential measure of a country's military strength. In this paper, hydrothermal and improved Stober methods prepared the composite absorbing material Fe3O4@SiO2@C/Ni with a double core-shell structure. The minimum reflection loss of the sample is-38.9 dB, and the maximum effective bandwidth is 10.1 GHz. By changing the thickness of the carbon layer and the thickness of the SiO2 layer, the absorption performance of the prepared sample can be adjusted to achieve the best impedance matching. The synergistic effect of the composite's dielectric loss and magnetic loss improves its microwave absorption capacity, making it a promising choice for absorptive material applications.

引用

页数：17

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