Crystal structure and phase relationships in the pseudobinary system RE5Si4-RE5Ge4 (RE=Nd and Pr) at 1273 K

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	Crystal structure and phase relationships in the pseudobinary system RE5Si4-RE5Ge4 (RE=Nd and Pr) at 1273 K
	H. F. Yang; G. H. Rao; G. Y. Liu; Z. W. Ouyang; W. F. Liu; X. M. Feng; W. G. Chu; J. K. Liang
	2003
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	348 期号:1-2 页码:150-156
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.
部门归属	chinese acad sci, inst phys, beijing 100080, peoples r china. chinese acad sci, ctr condensed matter phys, beijing 100080, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;rao, gh (reprint author), chinese acad sci, inst phys, pob 603, beijing 100080, peoples r china
关键词	Rare Earth Compounds Crystal Structure Phase Diagram X-ray Diffraction Gd-5(Si2ge2) Transition Gd-5(Sixge1-x)(4)
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WOS记录号	WOS:000180153600023
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36109
专题	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.