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Dislocation dissociation and stacking-fault energy calculation in strontium titanate
dc.contributor.author | Castillo-Rodríguez, Miguel | |
dc.contributor.author | Sigle, W. | |
dc.date.accessioned | 2024-02-07T07:50:41Z | |
dc.date.available | 2024-02-07T07:50:41Z | |
dc.date.issued | 2010 | |
dc.identifier.issn | 1872-8456 | |
dc.identifier.uri | http://hdl.handle.net/10396/27208 | |
dc.description.abstract | The dislocation microstructure of strontium titanate plastically deformed below room temperature shows dipolar configurations of a〈1 1 0〉 screw dislocations. The dipole height is so small that dipole annihilation is expected. Here we show why this is inhibited. By high-resolution transmission electron microscopy observations we find that in such dipoles each dislocation is dissociated into two collinear a/2〈1 1 0〉 partials on a {1 1 0} plane. Elasticity theory calculations provide a stacking-fault energy value of 340 ± 90 mJ m−2. Finally, we discuss the effects of this dissociation process on the mechanical behaviour. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.rights | https://creativecommons.org/licenses/by-nc-nd/4.0/ | es_ES |
dc.source | Scripta Materialia, Vol 62, Issue 5, pp 270-273 (2010) | es_ES |
dc.subject | Dislocation structure | es_ES |
dc.subject | Faults | es_ES |
dc.subject | Low-temperature deformation | es_ES |
dc.subject | Perovskite | es_ES |
dc.title | Dislocation dissociation and stacking-fault energy calculation in strontium titanate | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.scriptamat.2009.11.016 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |