Structures of the zeta and zeta ' phases in the Ag-Ga system

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	Structures of the zeta and zeta ' phases in the Ag-Ga system
	Y. Zhang; Q. L. Liu; J. B. Li; J. K. Liang; J. Luo; F. S. Liu; Y. G. Xiao; G. H. Rao
	2005
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	399 期号:1-2 页码:155-159
摘要	The crystal structures of the zeta-phase and zeta'-phase have been determined by X-ray powder diffraction and refined by Rietveld method. The space group of the zeta'-phase is P (6) over bar 2m with the lattice parameters a = 7.7710(1) and c = 2.8788(1) angstrom. The ideal formula is Ag2Ga (real composition Ag2+xGa1-x, x = 0.16) and the chemical formula per unit cell is Z = 3. Six Ag atoms occupy the 3g positions with x = 0.63970(8) and the 3f positions with x = 0.30347(9), respectively. Three Ga atoms occupy the 2c and the 1b sites. The zeta-phase is obtained by quenching the sample containing 20 at.% Ga from 500 degrees C to room temperature. Its space group is close-packed hexagonal, P6(3)/mmc, and the lattice parameters are a = 2.8818(1) and c = 4.6956(1) angstrom. There are 2 atoms (1.5Ag + 0.5Ga) per unit cell, which occupy the 2c site statistically. The relation between the structures of the zeta- and zeta'-phase is discussed. (c) 2005 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, inst phys, beijing natl lab condensed matter phys, beijing 100080, peoples r china. acad sinica, int ctr mat phys, shenyang 110016, peoples r china.;liang, jk (reprint author), chinese acad sci, inst phys, beijing natl lab condensed matter phys, pob 603, beijing 100080, peoples r china;jkliang@aphy.iphy.ac.cn
关键词	Zeta-phase Zeta '-phase Structure Determination X-ray Powder Diffraction Silver-gallium Equilibrium Diagram Alloys Diffraction Refinement Region
URL	查看原文
WOS记录号	WOS:000230614600028
引用统计	被引频次：17[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/321006/35239
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Zhang,Q. L. Liu,J. B. Li,et al. Structures of the zeta and zeta ' phases in the Ag-Ga system[J]. Journal of Alloys and Compounds,2005,399(1-2):155-159.
APA	Y. Zhang.,Q. L. Liu.,J. B. Li.,J. K. Liang.,J. Luo.,...&G. H. Rao.(2005).Structures of the zeta and zeta ' phases in the Ag-Ga system.Journal of Alloys and Compounds,399(1-2),155-159.
MLA	Y. Zhang,et al."Structures of the zeta and zeta ' phases in the Ag-Ga system".Journal of Alloys and Compounds 399.1-2(2005):155-159.