Structure of the Al-Rh-Cu decagonal quasicrystal: I. A unit-cell approach

Li XZ; Hiraga K; Yubuta K

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Structure of the Al-Rh-Cu decagonal quasicrystal: I. A unit-cell approach

机译：Al-Rh-Cu十边形准晶体的结构：I.晶胞方法

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Structure of the Al-Rh-Cu decagonal quasicrystal has been studied by high-resolution electron microscopy. The high-resolution structure image shows an aperiodic tiling composed of three kinds of subunits, namely flattened hexagon, crown and five star. Therefore, a structural model of the Al-Rh-Cu decagonal quasicrystal has been constructed in a unit-cell approach, in which the atom arrangements in the subunits have been proposed. It is known that the phase has two lavers in a period of 0.4 nm along the unique tenfold axis according to the previous study by electron diffraction method. The ideal model of the Al-Rh-Cu decagonal quasicrystal is proposed as periodic stacking of the layers with quasiperiodic tessellation of the three kinds of subunits, in each layer the two-colour Penrose tiling is obtained if different atom decorations for the same shape subunits are distinguished by white and black colours. Calculated images reproduces well the contrast features of the observed images, which means that the present model is basically correct. Struct ural relationship between the Al-Rh-Cu decagonal quasicrystal and the previously reported Al-Ni-Co decagonal quasicrytsal, which has also a period of 0.4 nm, has also been discussed.

机译：Al-Rh-Cu十边形准晶体的结构已通过高分辨率电子显微镜进行了研究。高分辨率的结构图像显示了由三种亚单位组成的非周期性平铺，即扁平的六角形，冠形和五颗星。因此，已经以晶胞方式构建了Al-Rh-Cu十方准晶体的结构模型，其中提出了亚基中的原子排列。根据先前通过电子衍射方法的研究，已知该相沿唯一的十倍轴在0.4nm的周期内具有两个储层。提出了Al-Rh-Cu十边形准晶体的理想模型，即通过三种亚单位的准周期性棋盘格化的层的周期性堆叠，如果对于相同形状的亚单位使用不同的原子装饰，则在每一层中将获得两种颜色的Penrose拼贴。以白色和黑色为特色。计算出的图像很好地再现了观察到的图像的对比度特征，这意味着本模型基本上是正确的。还讨论了Al-Rh-Cu十边形准晶体与先前报道的Al-Ni-Co十边形准晶体之间的结构关系，该周期也为0.4 nm。

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《Physica, B. Condensed Matter》 |1997年第4期|共8页
作者
Li XZ; Hiraga K; Yubuta K;
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正文语种 eng
中图分类物理学;
关键词
Al-Rh-Cu alloy; decagonal quasicrystal; HREM; RESOLUTION ELECTRON-MICROSCOPY; QUASI-CRYSTAL; NI; ALLOYS; AXIS;

机译：Al-Rh-Cu合金;十方准晶体;HREM;分辨电子显微镜;准晶体;NI;合金;轴;

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1. Structure of the Al-Rh-Cu decagonal quasicrystal: I. A unit-cell approach [J] . Li XZ, Hiraga K, Yubuta K Physica, B. Condensed Matter . 1997,第4期

机译：Al-Rh-Cu十边形准晶体的结构：I.晶胞方法
2. Structure of the Al-Rh-Cu decagonal quasicrystal: II. A higher-dimensional description [J] . Li XZ, Hiraga K Physica, B. Condensed Matter . 1997,第4期

机译：Al-Rh-Cu十边形准晶体的结构：II。高维描述
3. Structure ofthe Al-Rh-Cu decagonal quasicrystal studied by high-resolution electron microscopy [J] . X. Z. Li, K. Hiraga, K. Yubuta Philosophical Magazine Letters . 1996,第4期

机译：高分辨率电子显微镜研究Al-Rh-Cu十方准晶体的结构
4. Atom Clusters in Decagonal Quasicrystals: Local Structures and Long-rangeArrangements Revealed by High-resolution Electron Microscopy [C] . Wei Sun, Kenji Hiraga Microscopy Society of America annual meeting;Microscopy Society of Canada annual meeting;Societe de Microscopie du Canada annual meeting;Microbeam Analysis Society annual meeting;International Metallographic Society annual meeting . 2002

机译：十角准晶体中的原子簇：高分辨率电子显微镜揭示的局部结构和远距离排列。
5. I. Structure, Diels-Alder reactivity and synthetic utility of N-alkoxycarbonyl-1,2-dihydropyridines. II. A novel approach to the synthesis of antitumor antibiotic 593-A [D] . Raghavachari, Ramesh 1988

机译：I.N-烷氧基羰基-1,2-二氢吡啶的结构，Diels-Alder反应性和合成效用。二。合成抗肿瘤抗生素593-A的新方法
6. Icosahedral and decagonal quasicrystals of intermetallic compounds are multiple twins of cubic or orthorhombic crystals composed of very large atomic complexes with icosahedral point-group symmetry in cubic close packing or body-centered packing: Structure of decagonal Al6Pd [O] . Linus Pauling 1989

机译：金属间化合物的二十面体和十面体准晶体是立方或正交晶体的多个孪晶由立方密堆积或体心堆积中具有二十面体点群对称的非常大的原子络合物组成：十方Al6Pd结构
7. Icosahedral and decagonal quasicrystals of intermetallic compounds are multiple twins of cubic or orthorhombic crystals composed of very large atomic complexes with icosahedral point-group symmetry in cubic close packing or body-centered packing: Structure of decagonal Al6Pd [O] . Pauling, Linus 1989

机译：金属间化合物的二十面体和十面体准晶体是立方或正交晶体的多个孪晶，由立方密堆积或体心堆积中具有二十面体点群对称的非常大的原子络合物组成：十方Al6Pd结构
8. The Structured Assessment Approach, Version I. License Submittal Document Content and Format for Material Control and Accounting Assessment. Volume II [R] . Parziale, A. A., Sacks, I. J. 1980

机译：结构化评估方法，版本I.许可证提交材料控制和会计评估的文档内容和格式。第二卷

Structure of the Al-Rh-Cu decagonal quasicrystal: I. A unit-cell approach

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