Crystal structure of the Al(8)Cr(5)-type inter­metallic Al(7.85)Cr(5.16)

An aluminium-deficient Al(8)Cr(5)-type inter­metallic with formula Al(7.85)Cr(5.16) (octa­aluminium penta­chromium) was uncovered when high-pressure sinter­ing of a mixture with composition Al(11)Cr(4) was carried out. Structure analysis reveals that there are three co-occupied positions with refine...

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Detalles Bibliográficos
Autores principales: Geng, Xu, Wen, Bin, Fan, Changzeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2020
Materias:
Data Reports
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9462207/
https://www.ncbi.nlm.nih.gov/pubmed/36338303
http://dx.doi.org/10.1107/S2414314620004228
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author Geng, Xu
Wen, Bin
Fan, Changzeng
author_facet Geng, Xu
Wen, Bin
Fan, Changzeng
author_sort Geng, Xu
collection PubMed
description An aluminium-deficient Al(8)Cr(5)-type inter­metallic with formula Al(7.85)Cr(5.16) (octa­aluminium penta­chromium) was uncovered when high-pressure sinter­ing of a mixture with composition Al(11)Cr(4) was carried out. Structure analysis reveals that there are three co-occupied positions with refined occupancy factors for Al atoms being 0.958, 0.772 and 1/2. The present phase is confirmed to be isotypic with the previously reported rhombohedral Al(8)Cr(5) ordered phase [Bradley & Lu (1937). Z. Kristallogr. 96, 20–37] and structurally closely related to the disordered phases of rhombohedral Al(16)Cr(9.5) and cubic Al(8)Cr(5). [Image: see text]
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spelling pubmed-94622072022-11-04 Crystal structure of the Al(8)Cr(5)-type inter­metallic Al(7.85)Cr(5.16) Geng, Xu Wen, Bin Fan, Changzeng IUCrdata Data Reports An aluminium-deficient Al(8)Cr(5)-type inter­metallic with formula Al(7.85)Cr(5.16) (octa­aluminium penta­chromium) was uncovered when high-pressure sinter­ing of a mixture with composition Al(11)Cr(4) was carried out. Structure analysis reveals that there are three co-occupied positions with refined occupancy factors for Al atoms being 0.958, 0.772 and 1/2. The present phase is confirmed to be isotypic with the previously reported rhombohedral Al(8)Cr(5) ordered phase [Bradley & Lu (1937). Z. Kristallogr. 96, 20–37] and structurally closely related to the disordered phases of rhombohedral Al(16)Cr(9.5) and cubic Al(8)Cr(5). [Image: see text] International Union of Crystallography 2020-04-09 /pmc/articles/PMC9462207/ /pubmed/36338303 http://dx.doi.org/10.1107/S2414314620004228 Text en © Geng et al. 2020 https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
spellingShingle Data Reports
Geng, Xu
Wen, Bin
Fan, Changzeng
Crystal structure of the Al(8)Cr(5)-type inter­metallic Al(7.85)Cr(5.16)
title Crystal structure of the Al(8)Cr(5)-type inter­metallic Al(7.85)Cr(5.16)
title_full Crystal structure of the Al(8)Cr(5)-type inter­metallic Al(7.85)Cr(5.16)
title_fullStr Crystal structure of the Al(8)Cr(5)-type inter­metallic Al(7.85)Cr(5.16)
title_full_unstemmed Crystal structure of the Al(8)Cr(5)-type inter­metallic Al(7.85)Cr(5.16)
title_short Crystal structure of the Al(8)Cr(5)-type inter­metallic Al(7.85)Cr(5.16)
title_sort crystal structure of the al(8)cr(5)-type inter­metallic al(7.85)cr(5.16)
topic Data Reports
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9462207/
https://www.ncbi.nlm.nih.gov/pubmed/36338303
http://dx.doi.org/10.1107/S2414314620004228
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