High-entropy spinel ferrites MFe2O4 (M = Mg, Mn, Fe, Co, Ni, Cu, Zn) with tunable electromagnetic properties and strong microwave absorption
文献类型：期刊论文
| 作者 | Ma,Jiabin1,3; Zhao,Biao3; Xiang,Huimin1; Dai,Fu-Zhi1; Liu,Yi4; Zhang,Rui2; Zhou,Yanchun1 |
| 刊名 | Journal of Advanced Ceramics
 |
| 出版日期 | 2022-04-20 |
| 卷号 | 11期号:5 |
| ISSN号 | 2226-4108 |
| 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 |
| 通讯作者 | Zhao,Biao(zhaobiao1813@163.com) ; Zhou,Yanchun(yczhou@alum.imr.ac.cn) |
| 英文摘要 | 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. |
| 语种 | 英语 |
| 出版者 | Tsinghua University Press |
| WOS记录号 | BMC:10.1007/S40145-022-0569-3 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/173092]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhao,Biao; Zhou,Yanchun |
| 作者单位 | 1.Aerospace Research Institute of Materials & Processing Technology; Science and Technology on Advanced Functional Composite Laboratory 2.Luoyang Institute of Science and Technology; School of Materials Science and Engineering 3.Zhengzhou University of Aeronautics; Henan Key Laboratory of Aeronautical Materials and Application Technology, School of Materials Science and Engineering 4.Shaanxi University of Science and Technology; School of Material 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). |
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来源：金属研究所
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