Achieving ultra-broadband electromagnetic wave absorption in high-entropy transition metal carbides (HE TMCs)
文献类型：期刊论文
| 作者 | Zhang,Weiming1; Xiang,Huimin1; Dai,Fu-Zhi1; Zhao,Biao2; Wu,Shijiang3; Zhou,Yanchun1 |
| 刊名 | Journal of Advanced Ceramics
 |
| 出版日期 | 2022-03-17 |
| 卷号 | 11期号:4 |
| ISSN号 | 2226-4108 |
| 关键词 | transition metal carbide (TMC) high-entropy ceramics electromagnetic (EM) wave absorption dielectric and magnetic loss coupling ultra-broadband absorption |
| DOI | 10.1007/s40145-021-0554-2 |
| 通讯作者 | Zhou,Yanchun(yczhou@alum.imr.ac.cn) |
| 英文摘要 | AbstractElectronic devices pervade everyday life, which has triggered severe electromagnetic (EM) wave pollution. To face this challenge, developing EM wave absorbers with ultra-broadband absorption capacity is critically required. Currently, nano-composite construction has been widely utilized to realize impedance match and broadband absorption. However, complex experimental procedures, limited thermal stability, and interior oxidation resistance are still unneglectable issues. Therefore, it is appealing to realize ultra-broadband EM wave absorption in single-phase materials with good stability. Aiming at this target, two high-entropy transition metal carbides (HE TMCs) including (Zr,Hf,Nb,Ta)C (HE TMC-2) and (Cr,Zr,Hf,Nb,Ta)C (HE TMC-3) are designed and synthesized, of which the microwave absorption performance is investigated in comparison with previously reported (Ti,Zr,Hf,Nb,Ta)C (HE TMC-1). Due to the synergistic effects of dielectric and magnetic losses, HE TMC-2 and HE TMC-3 exhibit better impedance match and wider effective absorption bandwidth (EAB). In specific, the exclusion of Ti element in HE TMC-2 endows it optimal minimum reflection loss (RLmin) and EAB of ?41.7 dB (2.11 mm, 10.52 GHz) and 3.5 GHz (at 3.0 mm), respectively. Remarkably, the incorporation of Cr element in HE TMC-3 significantly improves the impedance match, thus realizing EAB of 10.5, 9.2, and 13.9 GHz at 2, 3, and 4 mm, respectively. The significance of this study lays on realizing ultra-broadband capacity in HE TMC-3 (Cr, Zr, Hf, Nb, Ta), demonstrating the effectiveness of high-entropy component design in tailoring the impedance match. |
| 语种 | 英语 |
| 出版者 | Tsinghua University Press |
| WOS记录号 | BMC:10.1007/S40145-021-0554-2 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/173418]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhou,Yanchun |
| 作者单位 | 1.Aerospace Research Institute of Materials & Processing Technology; Science and Technology on Advanced Functional Composite Laboratory 2.Zhengzhou University of Aeronautics; Henan Key Laboratory of Aeronautical Materials and Application Technology, School of Material Science and Engineering 3.Zibo Firststar New Material Incorporated Co., Ltd. |
| 推荐引用方式 GB/T 7714 | Zhang,Weiming,Xiang,Huimin,Dai,Fu-Zhi,et al. Achieving ultra-broadband electromagnetic wave absorption in high-entropy transition metal carbides (HE TMCs)[J]. Journal of Advanced Ceramics,2022,11(4). |
| APA | Zhang,Weiming,Xiang,Huimin,Dai,Fu-Zhi,Zhao,Biao,Wu,Shijiang,&Zhou,Yanchun.(2022).Achieving ultra-broadband electromagnetic wave absorption in high-entropy transition metal carbides (HE TMCs).Journal of Advanced Ceramics,11(4). |
| MLA | Zhang,Weiming,et al."Achieving ultra-broadband electromagnetic wave absorption in high-entropy transition metal carbides (HE TMCs)".Journal of Advanced Ceramics 11.4(2022). |
入库方式： OAI收割
来源：金属研究所
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