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<datestamp>2018-01-11</datestamp>
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<title lang=en>Characterization of the glide planes of the [001] screw dislocations in olivine using electron tomography</title>
<creator>Mussi, Alexandre</creator>
<creator>Cordier, Patrick</creator>
<creator>Demouchy, Sylvie</creator>
<creator>Vanmansart, Claude</creator>
<contributor>Unité Matériaux et Transformations - UMR 8207 (UMET) ; Centre National de la Recherche Scientifique (CNRS) - Ecole Nationale Supérieure de Chimie de Lille (ENSCL) - Institut National de la Recherche Agronomique (INRA) - Université de Lille, Sciences et Technologies</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>
<description>International audience</description>
<source>ISSN: 0342-1791</source>
<source>EISSN: 1432-2021</source>
<source>Physics and Chemistry of Minerals</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-01054330</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01054330</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01054330</source>
<source>Physics and Chemistry of Minerals, Springer Verlag, 2014, 41 (7), pp.537-545. 〈10.1007/s00269-014-0665-1〉</source>
<identifier>DOI : 10.1007/s00269-014-0665-1</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s00269-014-0665-1</relation>
<language>en</language>
<subject lang=en>Olivine</subject>
<subject lang=en>Tomography</subject>
<subject lang=en>Precession</subject>
<subject lang=en>TEM</subject>
<subject lang=en>Dislocation</subject>
<subject lang=en>Glide plane</subject>
<subject>[SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]</subject>
<subject>[PHYS.PHYS.PHYS-GEO-PH] Physics [physics]/Physics [physics]/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>A San Carlos olivine polycrystal has been deformed under uppermost mantle conditions, by compression at 900 °C, at a strain rate of 1.1 × 10−5 s−1, under a confining pressure of 300 MPa, using the Paterson press. Transmission electron tomography of dislocations has been performed by scanning transmission electron microscopy, by conventional transmission electron microscopy using the weak-beam dark-field technique, associated with precession or not, in order to determine the glide planes of [001] screw dislocations. This recent technique is the most suitable one since most [001] dislocations exhibit straight screw segments due to the high lattice friction on this character at low temperature. We find that [001] dislocations glide in (100), (010) and {110} as already reported, but also more unexpectedly in {120} and {130}. We show that at 900 °C, [001] {110} glide is dominant in polycrystals. We have, however, noted and characterized numerous cross-slip events in the specimen.</description>
<date>2014-07</date>
</dc>
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