New type of Al-based decagonal quasicrystal in Al(60)Cr(20)Fe(10)Si(10) alloy

A new kind of decagonal quasicrystal (DQC) with a periodicity of 1.23 nm was observed in the as-cast quaternary Al(60)Cr(20)Fe(10)Si(10) alloy. The intensity distribution of some spots in the selected-area electron diffraction pattern along the tenfold zone axis was found to be different from other...

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Autores principales: He, Zhanbing, Ma, Haikun, Li, Hua, Li, Xingzhong, Ma, Xiuliang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4772379/
https://www.ncbi.nlm.nih.gov/pubmed/26928759
http://dx.doi.org/10.1038/srep22337
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author He, Zhanbing
Ma, Haikun
Li, Hua
Li, Xingzhong
Ma, Xiuliang
author_facet He, Zhanbing
Ma, Haikun
Li, Hua
Li, Xingzhong
Ma, Xiuliang
author_sort He, Zhanbing
collection PubMed
description A new kind of decagonal quasicrystal (DQC) with a periodicity of 1.23 nm was observed in the as-cast quaternary Al(60)Cr(20)Fe(10)Si(10) alloy. The intensity distribution of some spots in the selected-area electron diffraction pattern along the tenfold zone axis was found to be different from other Al-based DQCs. High-angle annular dark-field scanning transmission electron microscopy was adopted to reveal the structural features at an atomic level. Both the tenfold symmetry and symmetry-broken decagonal (D) clusters of 1.91 nm in diameter were found, but with structural characteristics different from the corresponding D clusters in the other Al-based DQCs. The neighboring D clusters are connected by sharing one edge rather than covering, suggesting the tiling model is better than the covering model for structural description.
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spelling pubmed-47723792016-03-07 New type of Al-based decagonal quasicrystal in Al(60)Cr(20)Fe(10)Si(10) alloy He, Zhanbing Ma, Haikun Li, Hua Li, Xingzhong Ma, Xiuliang Sci Rep Article A new kind of decagonal quasicrystal (DQC) with a periodicity of 1.23 nm was observed in the as-cast quaternary Al(60)Cr(20)Fe(10)Si(10) alloy. The intensity distribution of some spots in the selected-area electron diffraction pattern along the tenfold zone axis was found to be different from other Al-based DQCs. High-angle annular dark-field scanning transmission electron microscopy was adopted to reveal the structural features at an atomic level. Both the tenfold symmetry and symmetry-broken decagonal (D) clusters of 1.91 nm in diameter were found, but with structural characteristics different from the corresponding D clusters in the other Al-based DQCs. The neighboring D clusters are connected by sharing one edge rather than covering, suggesting the tiling model is better than the covering model for structural description. Nature Publishing Group 2016-03-01 /pmc/articles/PMC4772379/ /pubmed/26928759 http://dx.doi.org/10.1038/srep22337 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
He, Zhanbing
Ma, Haikun
Li, Hua
Li, Xingzhong
Ma, Xiuliang
New type of Al-based decagonal quasicrystal in Al(60)Cr(20)Fe(10)Si(10) alloy
title New type of Al-based decagonal quasicrystal in Al(60)Cr(20)Fe(10)Si(10) alloy
title_full New type of Al-based decagonal quasicrystal in Al(60)Cr(20)Fe(10)Si(10) alloy
title_fullStr New type of Al-based decagonal quasicrystal in Al(60)Cr(20)Fe(10)Si(10) alloy
title_full_unstemmed New type of Al-based decagonal quasicrystal in Al(60)Cr(20)Fe(10)Si(10) alloy
title_short New type of Al-based decagonal quasicrystal in Al(60)Cr(20)Fe(10)Si(10) alloy
title_sort new type of al-based decagonal quasicrystal in al(60)cr(20)fe(10)si(10) alloy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4772379/
https://www.ncbi.nlm.nih.gov/pubmed/26928759
http://dx.doi.org/10.1038/srep22337
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AT lixingzhong newtypeofalbaseddecagonalquasicrystalinal60cr20fe10si10alloy
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