High-entropy spinel ferrites MFe2O4 (M = Mg, Mn, Fe, Co, Ni, Cu, Zn) with tunable electromagnetic properties and strong microwave absorption

doi:10.1007/s40145-022-0569-3

IMR OpenIR

	High-entropy spinel ferrites MFe2O4 (M = Mg, Mn, Fe, Co, Ni, Cu, Zn) with tunable electromagnetic properties and strong microwave absorption
	Ma,Jiabin 1,2; Zhao,Biao 1; Xiang,Huimin 2; Dai,Fu-Zhi 2; Liu,Yi 3; Zhang,Rui 4; Zhou,Yanchun 2
通讯作者	Zhao,Biao(zhaobiao1813@163.com) ; Zhou,Yanchun(yczhou@alum.imr.ac.cn)
	2022-04-20
发表期刊	Journal of Advanced Ceramics
ISSN	2226-4108
卷号	11 期号:5
摘要	AbstractFerrites are the most widely used microwave absorbing materials to deal with the threat of electromagnetic (EM) pollution. However, the lack of sufficient dielectric loss capacity is the main challenge that limits their applications. To cope with this challenge, three high-entropy (HE) spinel-type ferrite ceramics including (Mg0.2Mn0.2Fe0.2Co0.2Ni0.2)Fe2O4, (Mg0.2Fe0.2Co0.2Ni0.2Cu0.2)Fe2O4, and (Mg0.2Fe0.2Co0.2Ni0.2Zn0.2)Fe2O4 were designed and successfully prepared through solid state synthesis. The results show that all three HE MFe2O4 samples exhibit synergetic dielectric loss and magnetic loss. The good magnetic loss ability is due to the presence of magnetic components; while the enhanced dielectric properties are attributed to nano-domain, hopping mechanism of resonance effect and HE effect. Among three HE spinels, (Mg0.2Mn0.2Fe0.2Co0.2Ni0.2)Fe2O4 shows the best EM wave absorption performance, e.g., its minimum reflection loss (RLmin) reaches ?35.10 dB at 6.78 GHz with a thickness of 3.5 mm, and the optimized effective absorption bandwidth (EAB) is 7.48 GHz from 8.48 to 15.96 GHz at the thickness of 2.4 mm. Due to the easy preparation and strong EM dissipation ability, HE MFe2O4 are promising as a new type of EM absorption materials.
关键词	high-entropy ceramics (HECs) spinel-type ferrite electromagnetic (EM) wave absorption dielectric loss magnetic loss
DOI	10.1007/s40145-022-0569-3
语种	英语
WOS记录号	BMC:10.1007/s40145-022-0569-3
出版者	Tsinghua University Press
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173093
专题	中国科学院金属研究所
通讯作者	Zhao,Biao; Zhou,Yanchun
作者单位	1.Zhengzhou University of Aeronautics; Henan Key Laboratory of Aeronautical Materials and Application Technology, School of Materials Science and Engineering 2.Aerospace Research Institute of Materials & Processing Technology; Science and Technology on Advanced Functional Composite Laboratory 3.Shaanxi University of Science and Technology; School of Material Science and Engineering 4.Luoyang Institute of Science and Technology; School of Materials Science and Engineering
推荐引用方式 GB/T 7714	Ma,Jiabin,Zhao,Biao,Xiang,Huimin,et al. High-entropy spinel ferrites MFe2O4 (M = Mg, Mn, Fe, Co, Ni, Cu, Zn) with tunable electromagnetic properties and strong microwave absorption[J]. Journal of Advanced Ceramics,2022,11(5).
APA	Ma,Jiabin.,Zhao,Biao.,Xiang,Huimin.,Dai,Fu-Zhi.,Liu,Yi.,...&Zhou,Yanchun.(2022).High-entropy spinel ferrites MFe2O4 (M = Mg, Mn, Fe, Co, Ni, Cu, Zn) with tunable electromagnetic properties and strong microwave absorption.Journal of Advanced Ceramics,11(5).
MLA	Ma,Jiabin,et al."High-entropy spinel ferrites MFe2O4 (M = Mg, Mn, Fe, Co, Ni, Cu, Zn) with tunable electromagnetic properties and strong microwave absorption".Journal of Advanced Ceramics 11.5(2022).