Application of electron tomography of ...
Document type :
Article dans une revue scientifique: Article original
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Title :
Application of electron tomography of dislocations in beam-sensitive quartz to the determination of strain components
Author(s) :
Mussi, Alexandre [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Gallet, Julien [Auteur]
Castelnau, Olivier [Auteur]
Cordier, Patrick [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
![refId](/themes/Mirage2//images/idref.png)
Unité Matériaux et Transformations - UMR 8207 [UMET]
Gallet, Julien [Auteur]
Castelnau, Olivier [Auteur]
Cordier, Patrick [Auteur]
![refId](/themes/Mirage2//images/idref.png)
Unité Matériaux et Transformations - UMR 8207 [UMET]
Journal title :
Tectonophysics
Abbreviated title :
Tectonophysics
Volume number :
803
Pages :
228754
Publisher :
Elsevier BV
Publication date :
2021-03
ISSN :
0040-1951
English abstract : [en]
In this study we apply electron tomography of dislocations to quartz with a view to assess whether the von Mises-Taylor criterion is satisfied or violated in a deformed crystal of quartz. We propose a method to perform ...
Show more >In this study we apply electron tomography of dislocations to quartz with a view to assess whether the von Mises-Taylor criterion is satisfied or violated in a deformed crystal of quartz. We propose a method to perform electron tomography with few projected images which allows extension of this technique to beam-sensitive materials such as quartz. The 3D characterization of the dislocation microstructure allows the evaluation of contributions to dislocation mobility with no ambiguity. From the geometrical characteristics of the dislocations and their Burgers vectors, we show how to identify the non-zero components of the strain tensor. We show that in the quartz grain investigated, the von-Mises-Taylor criterion is satisfied thanks to the climb of 〈c+a〉 dislocations.Show less >
Show more >In this study we apply electron tomography of dislocations to quartz with a view to assess whether the von Mises-Taylor criterion is satisfied or violated in a deformed crystal of quartz. We propose a method to perform electron tomography with few projected images which allows extension of this technique to beam-sensitive materials such as quartz. The 3D characterization of the dislocation microstructure allows the evaluation of contributions to dislocation mobility with no ambiguity. From the geometrical characteristics of the dislocations and their Burgers vectors, we show how to identify the non-zero components of the strain tensor. We show that in the quartz grain investigated, the von-Mises-Taylor criterion is satisfied thanks to the climb of 〈c+a〉 dislocations.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Non spécifiée
European Project :
Administrative institution(s) :
Université de Lille
CNRS
INRA
ENSCL
CNRS
INRA
ENSCL
Collections :
Research team(s) :
Plasticité
Submission date :
2021-06-02T09:39:51Z
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