Chemicla disorder and columnar vacancies in ideal decagonal Al-Ni-Co Quasicrystals

机译：理想十边形Al-Ni-Co准晶体中的化学无序和柱状空位

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Atomic-resolution Z-contrast images provide conclusive evidence for chemcial disorder in an ideal Al-Ni-Co quasicrystal.The so-called basic Ni-rich,high temeprature,quasiperiodic structure exhibits chemical disorder at the center of the 2 nm diameter clusters that involves both the Al and Ni(Co) atoms.the atomic structure of the 2 nm clusters is derived directly from the images and differs from previous models.The presence of closely-spaced,half-occupied atomic columns (or columnar vacancies) in specific rings within the clusters is directly observed.We propsoe that these columnar vacancies mediate the phason flips necessary for transformation to random tiling.

机译：原子分辨率的Z对比图像为理想的Al-Ni-Co准晶体中的化学无序提供了确凿的证据。所谓的富碱，高Temeprature，准周期的基本结构在2 nm直径簇的中心表现出化学无序，包含Al和Ni（Co）原子.2 nm团簇的原子结构直接从图像得出，与以前的模型不同。在特定情况下，存在紧密间隔的半占用原子柱（或柱状空位）直接观察到簇中的环。我们建议这些柱状空位介导转换为随机平铺所需的相移。

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《Symposium on Quasicrystals held November 30-December 2,1998,Boston,Massachusetts,U.S.A.》|1998年|p.189-194|共6页
会议地点 Boston MA(US)
作者
Yanfa Yan; S.J.Pennycook; A.P.Tsai;
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正文语种 eng
中图分类一般工业技术;
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专利

1. Study of an Order-Disorder Phase Transition on an Atomic Scale: The Example of Decagonal Al-Ni-Co Quasicrystals [J] . K. Sato, F. Baier, W. Sprengel, Physical review letters . 2004,第12期

机译：原子尺度上有序-无序相变的研究：十方Al-Ni-Co准晶体的例子
2. Bridging room-temperature and high-temperature plasticity in decagonal Al-Ni-Co quasicrystals by micro-thermomechanical testing [J] . Zou Yu, Wheeler Jeffrey M., Sologubenko Alla S., Philosophical magazine: structure and properties of condensed matter . 2016,第31a36期

机译：通过微观热机械测试桥接房间 - 温度和高温可塑性，通过微热机械测试
3. Fermi states and anisotropy of Brillouin zone scattering in the decagonal Al-Ni-Co quasicrystal [J] . Rogalev V. A., Groening O., Widmer R., Nature Communications . 2015,第Octa期

机译：十边形Al-Ni-Co准晶体中的费米态和布里渊区散射的各向异性。
4. Chemicla disorder and columnar vacancies in ideal decagonal Al-Ni-Co Quasicrystals [C] . Yanfa Yan, S.J.Pennycook, A.P.Tsai, Symposium on quasicrystals . 1999

机译：理想结束Al-Ni-Co拟rAsicstals的化学障碍和柱状空缺
5. First-principles study of decagonal quasicrystals. [D] . Al-Lehyani, Ibrahim Hamdan. 2002

机译：十边形准晶体的第一性原理研究。
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. Formation of a quasicrystalline Pb monolayer on the ten-fold surface of the decagonal Al-Ni-Co quasicrystal [O] . Smerdon, J. A., Leung, L., Parle, J. K., 2008

机译：在十倍表面上形成准晶pb单层十边形al-Ni-Co准晶

Chemicla disorder and columnar vacancies in ideal decagonal Al-Ni-Co Quasicrystals

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