The influence of external stress/strain on the phase transitions and dielectric properties of potassium niobate crystal
文献类型：期刊论文
| 作者 | Zhang, Tao; Wu, Qiang; Wu, Xing; Gu, Yan; Gao, Zhi-peng; Nie, Heng-chang; Li, Jun; Deng, Ming-hai |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2019-03-25 |
| 卷号 | 778页码:787 |
| 关键词 | Lead-free ferroelectric crystal Shock compression Phase transition Ferroelectric properties Dielectric properties |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2018.11.119 |
| 文献子类 | Article |
| 英文摘要 | We investigated the effects of one-dimensional shock wave compression on the structural, dielectric, and ferroelectric properties of a potassium niobate ferroelectric crystal using Landau-Ginsburg-Devonshire phenomenological theory. Our results show that the cubic to tetragonal and tetragonal to orthorhombic phase transition temperatures increase with increasing shock compression and the derivative of the phase transition temperatures with respect to stain induced by shock compression was estimated to be 21.9 degrees C/10(-3). Additionally, the orthorhombic to rhombohedral phase transition temperature decreased with increasing shock compression and the derivative of the phase transition temperatures with respect to stain induced by shock compression was estimated to be -144.3 degrees C/10(-3). This result represents a 15.3% increase in the remnant polarization of the tetragonal KNbO3 crystal when the stain induced by shock compression increased from 0 to 4 x 10(-3) at 400 degrees C. The dielectric susceptibilities epsilon(33) and epsilon(22 )were calculated to decrease by approximately 20% and 40%, respectively, when the stain induced by shock compression increased from 0 to 1.6 x 10(-3) at 350 degrees C. The increase in the remnant polarization and the decrease in the dielectric properties induced by shock compression provide an effective way to improve the power output capacity of a ferroelectric-pulsed power supply. (C) 2018 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27259]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, Tao,Wu, Qiang,Wu, Xing,et al. The influence of external stress/strain on the phase transitions and dielectric properties of potassium niobate crystal[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,778:787. |
| APA | Zhang, Tao.,Wu, Qiang.,Wu, Xing.,Gu, Yan.,Gao, Zhi-peng.,...&Deng, Ming-hai.(2019).The influence of external stress/strain on the phase transitions and dielectric properties of potassium niobate crystal.JOURNAL OF ALLOYS AND COMPOUNDS,778,787. |
| MLA | Zhang, Tao,et al."The influence of external stress/strain on the phase transitions and dielectric properties of potassium niobate crystal".JOURNAL OF ALLOYS AND COMPOUNDS 778(2019):787. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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