Dielectric properties of (FeCoCrMnZn)3O4 high-entropy oxide at high pressure | |
Zheng, Zhi1,3; Liang, Bingliang2; Gao, Jing3; Ren, Jianyi2; Liu, Zhiyong2; Hou, Xue3; Sun, Jianhui1,3; Mei, Shenghua1,3 | |
刊名 | CERAMICS INTERNATIONAL |
2023-10-15 | |
卷号 | 49期号:20页码:32521-32527 |
关键词 | High-entropy oxide High pressure Dielectric properties Diamond anvil cell |
ISSN号 | 0272-8842 |
DOI | 10.1016/j.ceramint.2023.07.215 |
通讯作者 | Mei, Shenghua |
英文摘要 | The emerging high-entropy oxides (HEOs) have been considered promising candidates in numerous applications due to their unique properties. Yet the dielectric properties of HEOs at high pressure remain to be disclosed. In this work, the dielectric properties of (FeCoCrMnZn)(3)O-4 at high pressures up to similar to 20 GPa were systematically investigated. Combined with in-situ Raman, XRD, and impedance measurements, it is revealed that high-pressure exhibits a significant impact on the dielectric properties, even without the observed phase transition. The electric resistance, which is dominantly contributed by grain resistance, decreases exponentially with the increase of pressure. On the other hand, the relative permittivity decreases linearly with increasing pressure. In addition, the dielectric relaxation behavior of (FeCoCrMnZn)(3)O-4 at high pressure is revealed. Our results provide the experimental basis for the high-pressure effect on the dielectric properties of (FeCoCrMnZn)(3)O-4 and potential guidance for the design strategy of HEOs under extreme conditions. |
资助项目 | Open Project Program of Yazhou Bay Innovation Institute of Hainan Tropical Ocean University[2022CXYKFTK14] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22040501] ; Department of Science and Technology of Hainan Province[ZY2021HN15] ; National Natural Science Foundation of China[52162019] ; National Natural Science Foundation of China[51664043] ; Synergetic Extreme Condition User Facility (SECUF) |
WOS关键词 | CERAMICS |
WOS研究方向 | Materials Science |
语种 | 英语 |
出版者 | ELSEVIER SCI LTD |
WOS记录号 | WOS:001076918500001 |
资助机构 | Open Project Program of Yazhou Bay Innovation Institute of Hainan Tropical Ocean University ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Department of Science and Technology of Hainan Province ; National Natural Science Foundation of China ; Synergetic Extreme Condition User Facility (SECUF) |
内容类型 | 期刊论文 |
源URL | [http://ir.idsse.ac.cn/handle/183446/10525] |
专题 | 深海科学研究部_地外海洋系统研究室 |
通讯作者 | Mei, Shenghua |
作者单位 | 1.Hainan Deep Sea Technol Innovat Ctr, Sanya 572000, Peoples R China 2.Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Peoples R China 3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng, Zhi,Liang, Bingliang,Gao, Jing,et al. Dielectric properties of (FeCoCrMnZn)3O4 high-entropy oxide at high pressure[J]. CERAMICS INTERNATIONAL,2023,49(20):32521-32527. |
APA | Zheng, Zhi.,Liang, Bingliang.,Gao, Jing.,Ren, Jianyi.,Liu, Zhiyong.,...&Mei, Shenghua.(2023).Dielectric properties of (FeCoCrMnZn)3O4 high-entropy oxide at high pressure.CERAMICS INTERNATIONAL,49(20),32521-32527. |
MLA | Zheng, Zhi,et al."Dielectric properties of (FeCoCrMnZn)3O4 high-entropy oxide at high pressure".CERAMICS INTERNATIONAL 49.20(2023):32521-32527. |
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