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<identifier>oai:HAL:hal-00558238v1</identifier>
<datestamp>2018-01-11</datestamp>
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<metadata><dc>
<publisher>HAL CCSD</publisher>
<title lang=en>Peierls-Nabarro modelling of dislocations in diopside</title>
<creator>Metsue, Arnaud</creator>
<creator>Carrez, Philippe</creator>
<creator>Denoual, Christophe</creator>
<creator>MAINPRICE, David</creator>
<creator>Cordier, Patrick</creator>
<contributor>DAM Île-de-France (DAM/DIF) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)</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>
<source>ISSN: 0342-1791</source>
<source>EISSN: 1432-2021</source>
<source>Physics and Chemistry of Minerals</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-00558238</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00558238</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00558238</source>
<source>Physics and Chemistry of Minerals, Springer Verlag, 2010, 37 (10), pp.711-720. 〈10.1007/s00269-010-0370-7〉</source>
<identifier>DOI : 10.1007/s00269-010-0370-7</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s00269-010-0370-7</relation>
<language>en</language>
<subject lang=en>Peierls-Nabarro model</subject>
<subject lang=en>Empirical potentials</subject>
<subject lang=en>Slip systems</subject>
<subject lang=en>Dislocation core</subject>
<subject lang=en>Clinopyroxenes</subject>
<subject lang=en>Diopside</subject>
<subject lang=en>Deformation mechanisms</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>The core structures of dislocations in diopside have been calculated within the Peierls model, which assumes a planar core. 1/2 < 110 > dislocations can dissociate into two collinear partial dislocations. We show that [001] glide is very difficult in (010) and that a non-collinear dissociation of [001](100) (modelled within a Peierls-Nabarro-Galerkin approach) makes glide equally easy in (100) and {110}. A widely spread core structure corresponding to a low lattice friction has been found for [100](010) and [010](100) dislocations which is not supported by mechanical data and, together with TEM observations, suggests that another, probably non-planar core structure is possible for these dislocations.</description>
<date>2010</date>
</dc>
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