| 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 | |
| Corresponding Author | Yang, Z. Q.(yangzq@imr.ac.cn) |
| 2020-05-01 | |
| Source Publication | IUCRJ
 |
| ISSN | 2052-2525 |
| Volume | 7Pages:535-541 |
| Abstract | 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). |
| Keyword | decagonal quasicrystals icosahedrons Penrose tiling electron diffraction scanning-transmission electron microscopy |
| Funding Organization | National Nature Science Foundation of China ; Key Research Program of Frontier Science, CAS |
| DOI | 10.1107/S2052252520004297 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Crystallography ; Materials Science |
| WOS Subject | Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000531814600019 |
| Publisher | INT UNION CRYSTALLOGRAPHY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/138853 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, Z. Q. |
| Affiliation | 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 |
| Recommended Citation 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. |
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