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Dielectric and Ferroelectric Properties of High-Entropy Perovskite Oxides with A-site Disorder
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Bo NI1, Xiaoyan ZHANG1, 2, 3, Ru ZHEN2, Xiwei QI4
Journal of the Chinese Ceramic Society | 2022, 50(6) : 1475 - 1480
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Journal of the Chinese Ceramic Society | 2022, 50(6): 1475-1480
• Research Articles •
Dielectric and Ferroelectric Properties of High-Entropy Perovskite Oxides with A-site Disorder
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Bo NI1, Xiaoyan ZHANG1, 2, 3, Ru ZHEN2, Xiwei QI4
Affiliations
  • 1.College of Materials Science and Engineering, Northeastern University
  • 2.College of Resources and Materials, Northeastern University at Qinhuangdao
  • 3.Key Laboratory of Dielectric and Electrolyte Functional Material
  • 4.College of Metallurgy and Energy, North China of Science and Technology

    • NI Bo (1989-), male, Doctoral candidate. E-mail:

About Author:

NI Bo (1989-), male, Doctoral candidate. E-mail:

Published: 2022-06-20 doi: 10.14062/j.issn.0454-5648.20211086
Outline
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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 8 887 is obtained at 100 Hz 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.

perovskite  /  high-entropy ceramic  /  dielectric property  /  ferroelectric property
倪波, 张晓燕, 甄茹, 齐西伟. A位无序高熵钙钛矿氧化物的介电及铁电性能. 硅酸盐学报, 2022 , 50 (6) : 1475 -1480 . DOI: 10.14062/j.issn.0454-5648.20211086
Bo NI, Xiaoyan ZHANG, Ru ZHEN, Xiwei QI. Dielectric and Ferroelectric Properties of High-Entropy Perovskite Oxides with A-site Disorder[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (6) : 1475 -1480 . DOI: 10.14062/j.issn.0454-5648.20211086
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Year 2022 volume 50 Issue 6
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Article Info
doi: 10.14062/j.issn.0454-5648.20211086
  • Receive Date：2021-12-13
  • Online Date：2026-10-22
  • Published：2022-06-20
Article Data
Affiliations
History
  • Received：2021-12-13
  • Revised：2022-01-27
Funding
Affiliations
    1.College of Materials Science and Engineering, Northeastern University
    2.College of Resources and Materials, Northeastern University at Qinhuangdao
    3.Key Laboratory of Dielectric and Electrolyte Functional Material
    4.College of Metallurgy and Energy, North China of Science and Technology

Corresponding:

QI Xiwei (1974-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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