On the anisotropy in the HRTEM images of a decagonal quasicrystalline phase of the Al-Cu-Co-Si system

Experimental evidence of an electrical and/or magnetic anisotropy was observed in the high resolution transmission electron microscope (HRTEM) images of a decagonal quasicrystalline (DQC) phase of the Al-Cu-Co-Si system. X-ray energy dispersive spectroscopy (EDS) spectra indicated a composition of A...

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Detalles Bibliográficos
Autores: R. García-García, M.M. Martínez, J. Reyes-Gasga
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2007
País:México
Institución:Universidad Nacional Autónoma de México
Repositorio:Redalyc-UNAM
OAI Identifier:oai:redalyc.org:57016046004
Acceso en línea:https://www.redalyc.org/articulo.oa?id=57016046004
Access Level:acceso abierto
Palabra clave:Física, Astronomía y Matemáticas
EDS analysis
quasicrystals
Electron microscopy
decagonal quasicrystalline phase
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spelling On the anisotropy in the HRTEM images of a decagonal quasicrystalline phase of the Al-Cu-Co-Si systemR. García-GarcíaM.M. MartínezJ. Reyes-GasgaFísica, Astronomía y MatemáticasEDS analysisquasicrystalsElectron microscopydecagonal quasicrystalline phaseExperimental evidence of an electrical and/or magnetic anisotropy was observed in the high resolution transmission electron microscope (HRTEM) images of a decagonal quasicrystalline (DQC) phase of the Al-Cu-Co-Si system. X-ray energy dispersive spectroscopy (EDS) spectra indicated a composition of Al60Cu23Co15Si2 for this phase. The anisotropy was responsible for poor contrast quality in the HRTEM images along the periodic direction of this phase, whereas good image contrast was observed in the quasi-aperiodic ten-fold plane. Comparing these results to findings previously reported for the Al62Cu20Co15Si3DQC, we conclude that the observed anisotropy is strongly dependent on the selected chemical composition. After analyzing both the electrical and magnetic effects presented by a sample which is observed with an electron microscope, we conclude that the electrical properties of the DQC phase might be responsible for these observations.Sociedad Mexicana de Física A.C.2007info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdf0035-001Xhttps://www.redalyc.org/articulo.oa?id=57016046004Revista Mexicana de Física (México) Num.1 Vol.53reponame:Redalyc-UNAMinstname:Universidad Nacional Autónoma de Méxicoinstacron:UNAMenhttp://www.redalyc.org/revista.oa?id=570Revista Mexicana de Físicainfo:eu-repo/semantics/openAccessoai:redalyc.org:570160460042025-09-03T18:06:35Z
dc.title.none.fl_str_mv On the anisotropy in the HRTEM images of a decagonal quasicrystalline phase of the Al-Cu-Co-Si system
title On the anisotropy in the HRTEM images of a decagonal quasicrystalline phase of the Al-Cu-Co-Si system
spellingShingle On the anisotropy in the HRTEM images of a decagonal quasicrystalline phase of the Al-Cu-Co-Si system
R. García-García
Física, Astronomía y Matemáticas
EDS analysis
quasicrystals
Electron microscopy
decagonal quasicrystalline phase
title_short On the anisotropy in the HRTEM images of a decagonal quasicrystalline phase of the Al-Cu-Co-Si system
title_full On the anisotropy in the HRTEM images of a decagonal quasicrystalline phase of the Al-Cu-Co-Si system
title_fullStr On the anisotropy in the HRTEM images of a decagonal quasicrystalline phase of the Al-Cu-Co-Si system
title_full_unstemmed On the anisotropy in the HRTEM images of a decagonal quasicrystalline phase of the Al-Cu-Co-Si system
title_sort On the anisotropy in the HRTEM images of a decagonal quasicrystalline phase of the Al-Cu-Co-Si system
dc.creator.none.fl_str_mv R. García-García
M.M. Martínez
J. Reyes-Gasga
author R. García-García
author_facet R. García-García
M.M. Martínez
J. Reyes-Gasga
author_role author
author2 M.M. Martínez
J. Reyes-Gasga
author2_role author
author
dc.subject.none.fl_str_mv Física, Astronomía y Matemáticas
EDS analysis
quasicrystals
Electron microscopy
decagonal quasicrystalline phase
topic Física, Astronomía y Matemáticas
EDS analysis
quasicrystals
Electron microscopy
decagonal quasicrystalline phase
description Experimental evidence of an electrical and/or magnetic anisotropy was observed in the high resolution transmission electron microscope (HRTEM) images of a decagonal quasicrystalline (DQC) phase of the Al-Cu-Co-Si system. X-ray energy dispersive spectroscopy (EDS) spectra indicated a composition of Al60Cu23Co15Si2 for this phase. The anisotropy was responsible for poor contrast quality in the HRTEM images along the periodic direction of this phase, whereas good image contrast was observed in the quasi-aperiodic ten-fold plane. Comparing these results to findings previously reported for the Al62Cu20Co15Si3DQC, we conclude that the observed anisotropy is strongly dependent on the selected chemical composition. After analyzing both the electrical and magnetic effects presented by a sample which is observed with an electron microscope, we conclude that the electrical properties of the DQC phase might be responsible for these observations.
publishDate 2007
dc.date.none.fl_str_mv 2007
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0035-001X
https://www.redalyc.org/articulo.oa?id=57016046004
identifier_str_mv 0035-001X
url https://www.redalyc.org/articulo.oa?id=57016046004
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv http://www.redalyc.org/revista.oa?id=570
dc.rights.none.fl_str_mv Revista Mexicana de Física
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Revista Mexicana de Física
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Mexicana de Física A.C.
publisher.none.fl_str_mv Sociedad Mexicana de Física A.C.
dc.source.none.fl_str_mv Revista Mexicana de Física (México) Num.1 Vol.53
reponame:Redalyc-UNAM
instname:Universidad Nacional Autónoma de México
instacron:UNAM
instname_str Universidad Nacional Autónoma de México
instacron_str UNAM
institution UNAM
reponame_str Redalyc-UNAM
collection Redalyc-UNAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 14.965132

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