Shock Synthesis of Decagonal Quasicrystals

The Khatyrka meteorite contains both icosahedral and decagonal quasicrystals. In our previous studies, icosahedral quasicrystals have been synthesized and recovered from shock experiments at the interface between CuAl(5) and stainless steel 304 alloys. In this study, we report a new shock recovery e...

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Autores principales: Oppenheim, J., Ma, C., Hu, J., Bindi, L., Steinhardt, P. J., Asimow, P. D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5688080/
https://www.ncbi.nlm.nih.gov/pubmed/29142198
http://dx.doi.org/10.1038/s41598-017-15229-4
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author Oppenheim, J.
Ma, C.
Hu, J.
Bindi, L.
Steinhardt, P. J.
Asimow, P. D.
author_facet Oppenheim, J.
Ma, C.
Hu, J.
Bindi, L.
Steinhardt, P. J.
Asimow, P. D.
author_sort Oppenheim, J.
collection PubMed
description The Khatyrka meteorite contains both icosahedral and decagonal quasicrystals. In our previous studies, icosahedral quasicrystals have been synthesized and recovered from shock experiments at the interface between CuAl(5) and stainless steel 304 alloys. In this study, we report a new shock recovery experiment aimed at synthesizing decagonal quasicrystals similar to decagonite, natural Al(71)Ni(24)Fe(5). Aluminum 2024 and permalloy 80 alloys were stacked together and shocked in a stainless steel 304 recovery chamber. Abundant decagonal quasicrystals of average composition Al(73)Ni(19)Fe(4)Cu(2)Mg(0.6)Mo(0.4)Mn(0.3) with traces of Si and Cr were found along the recovered interface between the Al and permalloy. The experiment also synthesized AlNiFe alloy with the B2 (CsCl-type) structure and the metastable Al(9)Ni(2) phase. We present chemical (scanning electron microscopy and electron microprobe) and structural (electron backscatter diffraction and transmission electron microscopy) characterization of the recovered phases and discuss the implications of this shock synthesis for the stability of quasicrystals during high-pressure shocks and for the interpretation of the phase assemblage found in Khatyrka.
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spelling pubmed-56880802017-11-24 Shock Synthesis of Decagonal Quasicrystals Oppenheim, J. Ma, C. Hu, J. Bindi, L. Steinhardt, P. J. Asimow, P. D. Sci Rep Article The Khatyrka meteorite contains both icosahedral and decagonal quasicrystals. In our previous studies, icosahedral quasicrystals have been synthesized and recovered from shock experiments at the interface between CuAl(5) and stainless steel 304 alloys. In this study, we report a new shock recovery experiment aimed at synthesizing decagonal quasicrystals similar to decagonite, natural Al(71)Ni(24)Fe(5). Aluminum 2024 and permalloy 80 alloys were stacked together and shocked in a stainless steel 304 recovery chamber. Abundant decagonal quasicrystals of average composition Al(73)Ni(19)Fe(4)Cu(2)Mg(0.6)Mo(0.4)Mn(0.3) with traces of Si and Cr were found along the recovered interface between the Al and permalloy. The experiment also synthesized AlNiFe alloy with the B2 (CsCl-type) structure and the metastable Al(9)Ni(2) phase. We present chemical (scanning electron microscopy and electron microprobe) and structural (electron backscatter diffraction and transmission electron microscopy) characterization of the recovered phases and discuss the implications of this shock synthesis for the stability of quasicrystals during high-pressure shocks and for the interpretation of the phase assemblage found in Khatyrka. Nature Publishing Group UK 2017-11-15 /pmc/articles/PMC5688080/ /pubmed/29142198 http://dx.doi.org/10.1038/s41598-017-15229-4 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Oppenheim, J.
Ma, C.
Hu, J.
Bindi, L.
Steinhardt, P. J.
Asimow, P. D.
Shock Synthesis of Decagonal Quasicrystals
title Shock Synthesis of Decagonal Quasicrystals
title_full Shock Synthesis of Decagonal Quasicrystals
title_fullStr Shock Synthesis of Decagonal Quasicrystals
title_full_unstemmed Shock Synthesis of Decagonal Quasicrystals
title_short Shock Synthesis of Decagonal Quasicrystals
title_sort shock synthesis of decagonal quasicrystals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5688080/
https://www.ncbi.nlm.nih.gov/pubmed/29142198
http://dx.doi.org/10.1038/s41598-017-15229-4
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