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dc.contributor.author
González, C.  
dc.contributor.author
Panizo Laiz, M.  
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Gordillo, N.  
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Guerrero, Celia Leonor  
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Tejado, E.  
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Munnik, F.  
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Piaggi, P.  
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Bringa, Eduardo Marcial  
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Iglesias, R.  
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Perlado, J.M.  
dc.contributor.author
González Arrabal, R.  
dc.date.available
2020-03-19T18:57:08Z  
dc.date.issued
2015-09  
dc.identifier.citation
González, C.; Panizo Laiz, M.; Gordillo, N.; Guerrero, Celia Leonor; Tejado, E.; et al.; H trapping and mobility in nanostructured tungsten grain boundaries: A combined experimental and theoretical approach; International Atomic Energy Agency; Nuclear Fusion; 55; 11; 9-2015  
dc.identifier.issn
0029-5515  
dc.identifier.uri
http://hdl.handle.net/11336/100331  
dc.description.abstract
The trapping and mobility of hydrogen in nanostructured tungsten grain boundaries (GBs) have been studied by combining experimental and density functional theory (DFT) data. Experimental results show that nanostructured W coatings with a columnar grain structure and a large number of (1 1 0)/(2 1 1) interfaces retain more H than coarsed grained W samples. To investigate the possible influence of GBs on H retention, a complete energetic analysis of a non-coherent W(1 1 0)/W(1 1 2) interface has been performed employing DFT. Our results show that this kind of non-coherent interface largely attracts point defects (both a H atom and a metallic monovacancy separately) and that the presence of these interfaces contributes to a decrease in the migration energy of the H atoms with respect to the bulk value. When both the W monovacancy and H atom are introduced together into the system, the HV complex becomes the most stable configuration and one of the mechanisms explaining the H retention in the radiation damaged GB observed experimentally.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
International Atomic Energy Agency  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
DEFECTS  
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GRAIN BOUNDARIES  
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H TRAPPING AND MOBILITY  
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NANOSTRUCTURED W  
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Física de los Materiales Condensados  
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Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
H trapping and mobility in nanostructured tungsten grain boundaries: A combined experimental and theoretical approach  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2020-03-18T20:34:56Z  
dc.journal.volume
55  
dc.journal.number
11  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: González, C.. Universidad de Oviedo; España. Universidad Politécnica de Madrid; España  
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Fil: Panizo Laiz, M.. Universidad Politécnica de Madrid; España  
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Fil: Gordillo, N.. Universidad Politécnica de Madrid; España  
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Fil: Guerrero, Celia Leonor. Universidad Politécnica de Madrid; España  
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Fil: Tejado, E.. Consejo Superior de Investigaciones Científicas. Centro Nacional de Investigaciones Metalúrgicas; España. Universidad Politécnica de Madrid; España  
dc.description.fil
Fil: Munnik, F.. Helmholtz-Zentrum Dresden Rossendorf; Alemania  
dc.description.fil
Fil: Piaggi, P.. Universidad Nacional de San Martín. Instituto Sabato; Argentina  
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Fil: Bringa, Eduardo Marcial. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina  
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Fil: Iglesias, R.. Universidad de Oviedo; España  
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Fil: Perlado, J.M.. Universidad Politécnica de Madrid; España  
dc.description.fil
Fil: González Arrabal, R.. Universidad Politécnica de Madrid; España  
dc.journal.title
Nuclear Fusion  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/0029-5515/55/11/113009  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0029-5515/55/11/113009