A decagonal quasicrystal with rhombic and hexagonal tiles decorated with icosahedral structural units

doi:10.1107/S2052252520004297

IMR OpenIR

	A decagonal quasicrystal with rhombic and hexagonal tiles decorated with icosahedral structural units
	Wang, W. Z.1,2; Zhou, X. Z.2; Yang, Z. Q.2; Qi, Y.1; Ye, H. Q.2
通讯作者	Yang, Z. Q.(yangzq@imr.ac.cn)
	2020-05-01
发表期刊	IUCRJ
ISSN	2052-2525
卷号	7 页码:535-541
摘要	The structure of a decagonal quasicrystal in the Zn58Mg40Y2 (at. %) alloy was studied using electron diffraction and atomic resolution Z-contrast imaging techniques. This stable Frank-Kasper Zn-Mg-Y decagonal quasicrystal has an atomic structure which can be modeled with a rhombic/hexagonal tiling decorated with icosahedral units at each vertex. No perfect decagonal clusters were observed in the Zn-Mg-Y decagonal quasicrystal, which differs from the Zn-Mg-Dy decagonal crystal with the same space group P10/mmm. Y atoms occupy the center of 'dented decagon' motifs consisting of three fat rhombic and two flattened hexagonal tiles. About 75% of fat rhombic tiles are arranged in groups of five forming star motifs, while the others connect with each other in a 'zigzag' configuration. This decagonal quasicrystal has a composition of Zn68.3Mg29.1Y2.6 (at. %) with a valence electron concentration (e/a) of about 2.03, which is in accord with the Hume-Rothery criterion for the formation of the Zn-based quasicrystal phase (e/a = 2.0-2.15).
关键词	decagonal quasicrystals icosahedrons Penrose tiling electron diffraction scanning-transmission electron microscopy
资助者	National Nature Science Foundation of China ; Key Research Program of Frontier Science, CAS
DOI	10.1107/S2052252520004297
收录类别	SCI
语种	英语
资助项目	National Nature Science Foundation of China[51771202] ; National Nature Science Foundation of China[51971225] ; Key Research Program of Frontier Science, CAS[QYZDY-SSW-JSC207]
WOS研究方向	Chemistry ; Crystallography ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary
WOS记录号	WOS:000531814600019
出版者	INT UNION CRYSTALLOGRAPHY
引用统计	被引频次：4[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/321006/138853
专题	中国科学院金属研究所
通讯作者	Yang, Z. Q.
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, W. Z.,Zhou, X. Z.,Yang, Z. Q.,et al. A decagonal quasicrystal with rhombic and hexagonal tiles decorated with icosahedral structural units[J]. IUCRJ,2020,7:535-541.
APA	Wang, W. Z.,Zhou, X. Z.,Yang, Z. Q.,Qi, Y.,&Ye, H. Q..(2020).A decagonal quasicrystal with rhombic and hexagonal tiles decorated with icosahedral structural units.IUCRJ,7,535-541.
MLA	Wang, W. Z.,et al."A decagonal quasicrystal with rhombic and hexagonal tiles decorated with icosahedral structural units".IUCRJ 7(2020):535-541.