untitled
<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd>
<responseDate>2018-01-15T15:39:42Z</responseDate>
<request identifier=oai:HAL:hal-00475548v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request>
<GetRecord>
<record>
<header>
<identifier>oai:HAL:hal-00475548v1</identifier>
<datestamp>2018-01-11</datestamp>
<setSpec>type:ART</setSpec>
<setSpec>subject:sdu</setSpec>
<setSpec>subject:phys</setSpec>
<setSpec>subject:sde</setSpec>
<setSpec>collection:CNRS</setSpec>
<setSpec>collection:CEA</setSpec>
<setSpec>collection:SDE</setSpec>
<setSpec>collection:GM</setSpec>
<setSpec>collection:GIP-BE</setSpec>
<setSpec>collection:AGROPOLIS</setSpec>
<setSpec>collection:INSU</setSpec>
<setSpec>collection:UNIV-AG</setSpec>
<setSpec>collection:B3ESTE</setSpec>
<setSpec>collection:UNIV-MONTPELLIER</setSpec>
</header>
<metadata><dc>
<publisher>HAL CCSD</publisher>
<title lang=en>Plastic deformation of wadsleyite: IV Dislocation core modelling based on the Peierls-Nabarro-Galerkin model</title>
<creator>Metsue, Arnaud</creator>
<creator>Carrez, Philippe</creator>
<creator>Denoual, Christophe</creator>
<creator>MAINPRICE, David</creator>
<creator>Cordier, Patrick</creator>
<contributor>Laboratoire de structures et propriétés de l'état solide (LSPES) ; Université de Lille, Sciences et Technologies - Centre National de la Recherche Scientifique (CNRS)</contributor>
<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>
<description>International audience</description>
<source>ISSN: 1359-6454</source>
<source>Acta Materialia</source>
<publisher>Elsevier</publisher>
<identifier>hal-00475548</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00475548</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00475548</source>
<source>Acta Materialia, Elsevier, 2010, 58 (5), pp.1467-1478. 〈10.1016/j.actamat.2009.10.047〉</source>
<identifier>DOI : 10.1016/j.actamat.2009.10.047</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.actamat.2009.10.047</relation>
<language>en</language>
<subject lang=en>Element-free Galerkin</subject>
<subject lang=en>Peierls-Nabarro</subject>
<subject lang=en>Modelling</subject>
<subject lang=en>Wadsleyite</subject>
<subject lang=en>Dislocations</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>In this paper, we determine dislocation core structures and Peierls stresses of wadsleyite, a high-pressure mineral present in the Earth mantle. We use a Peierls-Nabarro model combined with a finite-element method in which we introduce two-dimensional generalized stacking fault energies. Several potential slip planes of wadsleyite are considered. The results show that dislocations in this mineral can exhibit complex dislocation cores with linear or non-collinear dissociation and even three-dimensional dislocation cores. The calculation of the Peierls stresses gives information on the potential activity of slip systems governing the plasticity of wadsleyite. Our study confirms experimental observations that 1/2 < 1 1 1 >{1 0 1} is the easiest slip system in this structure at high-pressure and that [1 0 0](0 1 0) is the second easiest. Both these easily slip systems have dislocations that dissociate into collinear partial dislocations. In contrast [0 1 0] dislocations with very large Burgers vector (11.2 angstrom) are stabilized by complex dissociations involving four partial dislocations.</description>
<date>2010</date>
</dc>
</metadata>
</record>
</GetRecord>
</OAI-PMH>
