Dielectric and Ferroelectric Properties of High-Entropy Perovskite Oxides with A-site Disorder

被引：0
|
作者：
Ni B. [1 ]
Zhang X. [1 ,2 ,3 ]
Zhen R. [2 ]
Qi X. [4 ]
机构：
[1] College of Materials Science and Engineering, Northeastern University
[2] College of Resources and Materials, Northeastern University at Qinhuangdao
[3] College of Metallurgy and Energy, North China of Science and Technology
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2022年 / 50卷 / 06期
关键词：
Dielectric property; Ferroelectric property; High-entropy ceramic; Perovskite;
D O I：
10.14062/j.issn.0454-5648.20211086
中图分类号：
学科分类号：
摘要：
High-entropy oxides with complex compositions can be designed as novel ferroelectric materials with interesting physical consequences. A single-phase (K0.5Bi0.5)0.2Ba0.2Sr0.2Ca0.2Mg0.2TiO3 high-entropy ceramic with a perovskite structure was synthesized by a conventional high-temperature solid-state method, and the dielectric and ferroelectric properties of the ceramic were investigated. The results show that there are no relaxation peaks in the test temperature range because of the multi-element doping. The dielectric constant of ceramic has a high-temperature stability at < 300℃. The maximum dielectric constant of 8887 is obtained at 100Hz and 650℃. The introduction of high-entropy oxide in the ceramic can have high-entropy ferroelectrics in complex materials, and modify the properties of electronic ceramic. © 2022, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：1475 / 1480
页数：5
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