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<datestamp>2018-01-11</datestamp>
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<title lang=en>Characterization of dislocation interactions in olivine using electron tomography</title>
<creator>Mussi, Alexandre</creator>
<creator>Cordier, Patrick</creator>
<creator>Demouchy, Sylvie</creator>
<contributor>Unité Matériaux et Transformations - UMR 8207 (UMET) ; Institut National de la Recherche Agronomique (INRA) - Université de Lille, Sciences et Technologies - Ecole Nationale Supérieure de Chimie de Lille (ENSCL) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Manteau et Interfaces ; Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS) - Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<source>ISSN: 1478-6443</source>
<source>Philosophical Magazine</source>
<publisher>Taylor & Francis: STM</publisher>
<publisher>Behavioural Science and Public Health Titles</publisher>
<publisher>Taylor & Francis: STM, Behavioural Science and Public Health Titles</publisher>
<identifier>hal-01174166</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01174166</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01174166</source>
<source>Philosophical Magazine, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2015, 95 (4), pp.335-345. 〈10.1080/14786435.2014.1000996〉</source>
<identifier>DOI : 10.1080/14786435.2014.1000996</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1080/14786435.2014.1000996</relation>
<language>en</language>
<subject lang=en>electron tomography</subject>
<subject lang=en>olivine</subject>
<subject lang=en>collinear interaction</subject>
<subject lang=en>TEM</subject>
<subject lang=en>dislocation</subject>
<subject lang=en>junction</subject>
<subject>[SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>We have investigated by electron tomography, in a transmission electronic microscope, the interactions between dislocations in olivine single crystals and polycrystals deformed in axial compression at T < 1000 °C (T < 0.5Tm). Dislocations are mostly of the [0 0 1] type, except in the polycrystal where [1 0 0] and [0 0 1] dislocations have been activated. A few 〈1 0 1〉 junctions have been found and characterized. Many collinear interactions have been identified either involving direct interactions between crossing dislocations of opposite Burgers vectors or indirect interactions between dislocations gliding in parallel planes and sessile dislocation loops. We suggest that collinear interaction, already identified as the primary source of strain hardening in FCC metals, is the main dislocation interaction mechanism in olivine deformed at temperatures below 1000 °C.</description>
<date>2015-02-01</date>
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