Interfacial morphology evolution of KTa1−xNbxO3crystal growth
文献类型：期刊论文
| 作者 | Li, Shuhui1,2; Pan, Xiuhong1; Liu, Yan1; Jin, Weiqing1; Zhang, Minghui1; Yu, Jianding1 |
| 刊名 | Journal of Crystal Growth
 |
| 出版日期 | 2017 |
| 卷号 | 467页码:77-81 |
| ISSN号 | 00220248 |
| DOI | 10.1016/j.jcrysgro.2017.03.032 |
| 英文摘要 | Two-dimensional growth of Potassium tantalate niobate (KTa1−xNbxO3) crystals with x = 0.94 was visualized by a high-temperature in situ observation system. Moreover, the interfacial morphology evolution and the interfacial kinetics during crystal growth were systematically studied by optical microscope. It was found that a square-shaped crystal surrounded by {1 1 0} planes was formed in the melt with small undercooling degree, while a large amount of rod-shaped crystals along with [0 0 1] direction predominated under large undercooling conditions. XRD results proved the orthorhombic phase of both shaped crystals. Interfacial kinetics analysis demonstrated the two-dimensional nucleation mechanism in the growth of square-shaped crystal. In contrast, the rod-shaped crystals were inclined to the rough surface growth mechanism. Furthermore, the surface compositional distribution of the as-grown crystal was carried out by EMPA, indicating that rod-shaped crystals had a smaller composition fluctuation than the square-shaped one, mainly due to the depressed segregating effect by the faster growth rate. The analysis of the mechanism and performance can promote the understanding of the KTN crystal. © 2017 Elsevier B.V. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25759]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China; 2.University of Chinese Academy of Sciences, Beijing; 100039, China |
| 推荐引用方式 GB/T 7714 | Li, Shuhui,Pan, Xiuhong,Liu, Yan,et al. Interfacial morphology evolution of KTa1−xNbxO3crystal growth[J]. Journal of Crystal Growth,2017,467:77-81. |
| APA | Li, Shuhui,Pan, Xiuhong,Liu, Yan,Jin, Weiqing,Zhang, Minghui,&Yu, Jianding.(2017).Interfacial morphology evolution of KTa1−xNbxO3crystal growth.Journal of Crystal Growth,467,77-81. |
| MLA | Li, Shuhui,et al."Interfacial morphology evolution of KTa1−xNbxO3crystal growth".Journal of Crystal Growth 467(2017):77-81. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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