The effect of A-site nonstoichiometry on the microstructure, electric properties, and phase stability of NaNbO3 polycrystalline ceramics
文献类型：期刊论文
| 作者 | Fan, Yuzhu; Zhou, Zhiyong; Liang, Ruihong; Zhou, Mingxing; Dong, Xianlin |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 39期号:15页码:4712 |
| 关键词 | NaNbO3 ceramics Antiferroelectric material A-site nonstoichiometry Phase stability |
| ISSN号 | 0955-2219 |
| DOI | 10.1016/j.jeurceramsoc.2019.06.041 |
| 文献子类 | Article |
| 英文摘要 | The impact of A-site nonstoichiometry on the microstructure, electric properties, and phase stability of sodium niobate ceramics (Na1+xNbO3, x = -2 to 1 mol %) was investigated. All the components maintained an orthorhombic antiferroelectric (AFE) structure. The grain size increased from 3.9 to 14.3 mu m with the variation in x from -2 to 1. The AFE-FE phase transition electric field dramatically increased from 100 kV cm(-1) at x = 0 to 170 kV cm(-1) at x = -2, confirming the enlarged energy barrier between AFE Pbma and FE P.mc2(1) phase under external field in A-site deficient components. This is attributed to the lattice compressive stress generated by introducing proper A-site vacancies. Combined results of transmission electron microscopy and Raman spectroscopy indicated that the AFE distortion of Pbma phase was significantly enhanced in A-site deficient components, which jointly contributed to the stability of AFE phase in A-site deficient NaNbO3 material. |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/26706]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Fan, Yuzhu,Zhou, Zhiyong,Liang, Ruihong,et al. The effect of A-site nonstoichiometry on the microstructure, electric properties, and phase stability of NaNbO3 polycrystalline ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2019,39(15):4712. |
| APA | Fan, Yuzhu,Zhou, Zhiyong,Liang, Ruihong,Zhou, Mingxing,&Dong, Xianlin.(2019).The effect of A-site nonstoichiometry on the microstructure, electric properties, and phase stability of NaNbO3 polycrystalline ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,39(15),4712. |
| MLA | Fan, Yuzhu,et al."The effect of A-site nonstoichiometry on the microstructure, electric properties, and phase stability of NaNbO3 polycrystalline ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 39.15(2019):4712. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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