Novel ternary core-shell structure with microwave absorption properties and low infrared emissivity

doi:10.1016/j.ceramint.2023.08.335

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	Novel ternary core-shell structure with microwave absorption properties and low infrared emissivity
	C. Wan, R. Yan, S. Yu, X. Wang and H. Tian
	2023
发表期刊	Ceramics International
ISSN	02728842
卷号	49 期号:22 页码:36516-36527
摘要	The development of functional materials with dual characteristics of microwave absorption and low infrared emissivity is vital for protection against magnetic-wave contamination. Currently, both microwave protection and infrared protection technologies are developing rapidly, but simultaneous integration of both has not been extensively investigated. Herein, a new ternary core-shell CoFe2O4@SiO2@ZAO composite dual-functional material was designed and fabricated. The process consisted of coating CoFe2O4 microspheres with ZAO based on SiO2 middle layer prepared through hydrolysis and sol-gel methods. The introduction of ZAO and SiO2 was found conducive to dielectric loss and impedance matching, thereby improving wave absorption. The nano-flower ZAO coating provided low infrared emissivity with a lamellar structure and high carrier concentration in the resulting ternary structure. The rise in ZAO content first enhanced the wave absorption of CoFe2O4@SiO2@ZAO and then decreased while the infrared emissivity declined. Among prepared samples, CoFe2O4@SiO2@ZAO exhibited a minimum reflection loss (RLmin) of −59.31 dB at 10.96 GHz, conducive to effective absorption bandwidth (EAB) of 4 GHz at 2 mm thickness with an infrared emissivity of 0.71 in 8–14 μm waveband. In sum, the novel CoFe2O4@SiO2@ZAO core-shell structure showed attractive properties in terms of compatibility of wave absorption and infrared emissivity, promising for future syntheses of dual-functional materials with improved performance. © 2023 Elsevier Ltd and Techna Group S.r.l.
DOI	10.1016/j.ceramint.2023.08.335
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收录类别	sci ; ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67906
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	C. Wan, R. Yan, S. Yu, X. Wang and H. Tian. Novel ternary core-shell structure with microwave absorption properties and low infrared emissivity[J]. Ceramics International,2023,49(22):36516-36527.
APA	C. Wan, R. Yan, S. Yu, X. Wang and H. Tian.(2023).Novel ternary core-shell structure with microwave absorption properties and low infrared emissivity.Ceramics International,49(22),36516-36527.
MLA	C. Wan, R. Yan, S. Yu, X. Wang and H. Tian."Novel ternary core-shell structure with microwave absorption properties and low infrared emissivity".Ceramics International 49.22(2023):36516-36527.

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