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Effects of helium and deuterium irradiation on SPS sintered W–Ta composites at different temperatures

2013Journal article Open access
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dc.contributor.authorMateus, R.
dc.contributor.authorDias, Marta
dc.contributor.authorLopes, J.
dc.contributor.authorRocha, J.
dc.contributor.authorCatarino, N.
dc.contributor.authorFranco, N.
dc.contributor.authorLivramento, Vanessa
dc.contributor.authorAlmeida Carvalho, Patricia
dc.contributor.authorCorreia, J.B.
dc.contributor.authorHanada, K.
dc.contributor.authorAlves, E.
dc.date.accessioned2014-04-23T11:55:29Z
dc.date.available2014-04-23T11:55:29Z
dc.date.issued2013
dc.description.abstractEnergetic He+ and D+ ions were implanted into different W–Ta composites in order to investigate their stability under helium and deuterium irradiation. The results were compared with morphological and chemical modifications arising from exposure of pure W and Ta. Special attention was given to tantalum hydride (Ta2H)formation due to its implications for tritium inventory. Three W–Ta composites with 10 and 20 at.% Ta were prepared from elemental W powder and Ta fibre or powder through low-energy ball milling in argon atmosphere. Spark plasma sintering (SPS) was used as the consolidation process in the temperature range from 1473 to 1873 K. The results obtained from pure elemental samples and composites are similar. However, Ta2H is easily formed in pure Ta by using a pre-implantation stage of He+, whereas in W–Ta composites the same reaction is clearly reduced, and it can be inhibited by controlling the sintering temperature.por
dc.identifier.citationMateus, R.; Dias, M.; Lopes, J.; Rocha, J.; Catarino, N.; Franco, N.; Livramento, V.; Carvalho, P.A.; Correia, J.B.; Hanada, K.; Alves, E. Effects of helium and deuterium irradiation on SPS sintered W–Ta composites at different temperatures. In: Journal of Nuclear Materials, 2013, Vol. 442, nº 1-3, Sup. 1, p. S251-S255por
dc.identifier.issn0022-3115
dc.identifier.urihttp://hdl.handle.net/10400.9/2441
dc.language.isoengpor
dc.publisherElsevierpor
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.jnucmat.2013.02.068por
dc.subjectTungstenpor
dc.subjectTantalumpor
dc.titleEffects of helium and deuterium irradiation on SPS sintered W–Ta composites at different temperaturespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPageS255por
oaire.citation.startPageS251por
oaire.citation.titleJournal of Nuclear Materialspor
oaire.citation.volume442por
person.familyNameDias
person.familyNamecarvalho
person.familyNameCorreia
person.familyNameAlves
person.givenNameMarta
person.givenNamepatricia
person.givenNameJose B.
person.givenNameEduardo
person.identifier.ciencia-id0E13-5F70-9D8A
person.identifier.ciencia-id021E-97A3-F128
person.identifier.ciencia-idC31C-D617-6377
person.identifier.ciencia-id7911-8653-3CF4
person.identifier.orcid0000-0001-6797-7711
person.identifier.orcid0000-0002-5447-0409
person.identifier.orcid0000-0002-8314-0695
person.identifier.orcid0000-0003-0633-8937
person.identifier.ridC-1150-2009
person.identifier.scopus-author-id7102859165
person.identifier.scopus-author-id7202364148
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublication.latestForDiscoveryf722bc06-dafc-4341-86f8-b405987804a8

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