Crystal structure and phase relationships in the pseudobinary system RE5Si4-RE5Ge4 (RE=Nd and Pr) at 1273 K
文献类型：期刊论文
| 作者 | H. F. Yang ; G. H. Rao ; G. Y. Liu ; Z. W. Ouyang ; W. F. Liu ; X. M. Feng ; W. G. Chu ; J. K. Liang |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2003 |
| 卷号 | 348期号:1-2页码:150-156 |
| ISSN号 | 0925-8388 |
| 关键词 | rare earth compounds crystal structure phase diagram X-ray diffraction gd-5(si2ge2) transition gd-5(sixge1-x)(4) |
| 中文摘要 | High-temperature (1273 K) phase relationships in the pseudobinary system RE5Si4-RE5Ge4 (RE=Nd and Pr) were studied by X-ray powder diffraction (XRD). Three structurally distinct phase regions exist in the Nd5Si4-xGex system: the Nd5Si4-based solid solution crystallizing in the tetragonal Zr5Si4-type Structure with space group P4(1)2(1)2, the Nd5Ge4-based solid solution crystallizing in the orthorhombic Gd5Ge4-type structure with space group Pnma and a ternary intermediate phase crystallizing in the monoclinic Gd5Si2Ge2-type structure with space group P112(1)/a. In the Pr5Si4-xGex system, there are only two structurally distinct phase regions: the Pr5Si4-based solid solution crystallizing in the tetragonal Zr5Si4-type structure with space group P4(1)2(1)2 and the Pr5Ge4-based solid solution crystallizing in the orthorhombic Gd5Ge4-type structure with space group Pnma. The Rietveld powder diffraction profile fitting technique was used for the refinement of crystal structures. The lattice parameters, atomic positions and interatomic distances in the high-temperature Nd5Si2.8Ge1.2, Nd5Si2Ge2 and Pr5Si2Ge2 compounds were derived. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36109]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. F. Yang,G. H. Rao,G. Y. Liu,et al. Crystal structure and phase relationships in the pseudobinary system RE5Si4-RE5Ge4 (RE=Nd and Pr) at 1273 K[J]. Journal of Alloys and Compounds,2003,348(1-2):150-156. |
| APA | H. F. Yang.,G. H. Rao.,G. Y. Liu.,Z. W. Ouyang.,W. F. Liu.,...&J. K. Liang.(2003).Crystal structure and phase relationships in the pseudobinary system RE5Si4-RE5Ge4 (RE=Nd and Pr) at 1273 K.Journal of Alloys and Compounds,348(1-2),150-156. |
| MLA | H. F. Yang,et al."Crystal structure and phase relationships in the pseudobinary system RE5Si4-RE5Ge4 (RE=Nd and Pr) at 1273 K".Journal of Alloys and Compounds 348.1-2(2003):150-156. |
入库方式： OAI收割
来源：金属研究所
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