“In-plane” site-specific FIB lamella extraction from deformed magnetite and the investigation of low angle grain boundaries under TEM

In this study a <em>modus operandi</em> to investigate site-specific nanostructures in <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/thin-films" target="_blank" rel="nofollow noopener noreferrer">thin films</a> (lamel...

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Detalles Bibliográficos
Autores: Mamtani, M.A., Wenzel, O., Kontny, A., Hilgers, C., Müller, E., Renjith, A.R., Llorens, Maria-Gema, Gómez Rivas, Enrique
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2023
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/208242
Acceso en línea:https://hdl.handle.net/2445/208242
Access Level:acceso abierto
Palabra clave:Magnetita
Cristal·lització
Cristal·lografia
Magnetite
Crystallization
Crystallography
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spelling “In-plane” site-specific FIB lamella extraction from deformed magnetite and the investigation of low angle grain boundaries under TEMMamtani, M.A.Wenzel, O.Kontny, A.Hilgers, C.Müller, E.Renjith, A.R.Llorens, Maria-GemaGómez Rivas, EnriqueMagnetitaCristal·litzacióCristal·lografiaMagnetiteCrystallizationCrystallographyIn this study a <em>modus operandi</em> to investigate site-specific nanostructures in <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/thin-films" target="_blank" rel="nofollow noopener noreferrer">thin films</a> (lamellae) excavated “<em>in-plane</em>” across (sub)grain boundaries is presented. This is done by discussing the case of a magnetite grain hosted in a thin section of <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/banded-iron-formation" target="_blank" rel="nofollow noopener noreferrer">banded iron formation</a> (Norway) that is prepared parallel to the kinematic reference frame (XZ section of the strain ellipsoid). SEM-EBSD analysis reveal that the magnetite grains do not develop a strong crystallographic preferred orientation, although individual grains are strained and show evidence of intracrystalline deformation in form of low angle grain boundaries (LAGB's). Two “<em>in-plane</em>” lamellae using focused <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/ion-beam" target="_blank" rel="nofollow noopener noreferrer">ion beam</a> (FIB) technique are excavated from a magnetite grain in the kinematic reference frame, and nanostructures are studied along three LAGB's using high resolution <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/transmission-electron-microscopy" target="_blank" rel="nofollow noopener noreferrer">transmission electron microscopy</a> imaging followed by Fourier transformation (FT), inverse FT and estimation of dislocation densities. Our data establish an empirical relationship for the studied LAGBs, namely, the smaller the angle between LAGB and X-direction, the larger are the shear strain and dislocation density. This relationship is validated from numerical simulations of viscoplastic deformation and dynamic recrystallisation of polycrystalline aggregates of <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/halite" target="_blank" rel="nofollow noopener noreferrer">halite</a>, which is also a cubic mineral analogous to magnetite. In addition to the site-specific “<em>in-plane</em>” FIB lamella information, this study also shows that in a deformed mineral the different orientations of the LAGB compared to the principal strain axes show a different dislocation density. This approach of full tracking of the extension direction (X) from the macroscopic to the nano-scale could play an important role in forward modelling of microstructure evolution in future studies.Elsevier Ltd2024202520232024info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion56 p.application/pdfhttps://hdl.handle.net/2445/208242Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/https://doi.org/10.1016/j.jsg.2023.104937Journal of Structural Geology, 2023, vol. 174https://doi.org/https://doi.org/10.1016/j.jsg.2023.104937cc-by-nc-nd (c) Elsevier Ltd, 2023info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2082422026-05-29T05:05:01Z
dc.title.none.fl_str_mv “In-plane” site-specific FIB lamella extraction from deformed magnetite and the investigation of low angle grain boundaries under TEM
title “In-plane” site-specific FIB lamella extraction from deformed magnetite and the investigation of low angle grain boundaries under TEM
spellingShingle “In-plane” site-specific FIB lamella extraction from deformed magnetite and the investigation of low angle grain boundaries under TEM
Mamtani, M.A.
Magnetita
Cristal·lització
Cristal·lografia
Magnetite
Crystallization
Crystallography
title_short “In-plane” site-specific FIB lamella extraction from deformed magnetite and the investigation of low angle grain boundaries under TEM
title_full “In-plane” site-specific FIB lamella extraction from deformed magnetite and the investigation of low angle grain boundaries under TEM
title_fullStr “In-plane” site-specific FIB lamella extraction from deformed magnetite and the investigation of low angle grain boundaries under TEM
title_full_unstemmed “In-plane” site-specific FIB lamella extraction from deformed magnetite and the investigation of low angle grain boundaries under TEM
title_sort “In-plane” site-specific FIB lamella extraction from deformed magnetite and the investigation of low angle grain boundaries under TEM
dc.creator.none.fl_str_mv Mamtani, M.A.
Wenzel, O.
Kontny, A.
Hilgers, C.
Müller, E.
Renjith, A.R.
Llorens, Maria-Gema
Gómez Rivas, Enrique
author Mamtani, M.A.
author_facet Mamtani, M.A.
Wenzel, O.
Kontny, A.
Hilgers, C.
Müller, E.
Renjith, A.R.
Llorens, Maria-Gema
Gómez Rivas, Enrique
author_role author
author2 Wenzel, O.
Kontny, A.
Hilgers, C.
Müller, E.
Renjith, A.R.
Llorens, Maria-Gema
Gómez Rivas, Enrique
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Magnetita
Cristal·lització
Cristal·lografia
Magnetite
Crystallization
Crystallography
topic Magnetita
Cristal·lització
Cristal·lografia
Magnetite
Crystallization
Crystallography
description In this study a <em>modus operandi</em> to investigate site-specific nanostructures in <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/thin-films" target="_blank" rel="nofollow noopener noreferrer">thin films</a> (lamellae) excavated “<em>in-plane</em>” across (sub)grain boundaries is presented. This is done by discussing the case of a magnetite grain hosted in a thin section of <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/banded-iron-formation" target="_blank" rel="nofollow noopener noreferrer">banded iron formation</a> (Norway) that is prepared parallel to the kinematic reference frame (XZ section of the strain ellipsoid). SEM-EBSD analysis reveal that the magnetite grains do not develop a strong crystallographic preferred orientation, although individual grains are strained and show evidence of intracrystalline deformation in form of low angle grain boundaries (LAGB's). Two “<em>in-plane</em>” lamellae using focused <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/ion-beam" target="_blank" rel="nofollow noopener noreferrer">ion beam</a> (FIB) technique are excavated from a magnetite grain in the kinematic reference frame, and nanostructures are studied along three LAGB's using high resolution <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/transmission-electron-microscopy" target="_blank" rel="nofollow noopener noreferrer">transmission electron microscopy</a> imaging followed by Fourier transformation (FT), inverse FT and estimation of dislocation densities. Our data establish an empirical relationship for the studied LAGBs, namely, the smaller the angle between LAGB and X-direction, the larger are the shear strain and dislocation density. This relationship is validated from numerical simulations of viscoplastic deformation and dynamic recrystallisation of polycrystalline aggregates of <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/halite" target="_blank" rel="nofollow noopener noreferrer">halite</a>, which is also a cubic mineral analogous to magnetite. In addition to the site-specific “<em>in-plane</em>” FIB lamella information, this study also shows that in a deformed mineral the different orientations of the LAGB compared to the principal strain axes show a different dislocation density. This approach of full tracking of the extension direction (X) from the macroscopic to the nano-scale could play an important role in forward modelling of microstructure evolution in future studies.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/208242
url https://hdl.handle.net/2445/208242
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/https://doi.org/10.1016/j.jsg.2023.104937
Journal of Structural Geology, 2023, vol. 174
https://doi.org/https://doi.org/10.1016/j.jsg.2023.104937
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier Ltd, 2023
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier Ltd, 2023
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 56 p.
application/pdf
dc.publisher.none.fl_str_mv Elsevier Ltd
publisher.none.fl_str_mv Elsevier Ltd
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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