Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering

Detalhes bibliográficos
Autor(a) principal: Dias, Marta
Data de Publicação: 2015
Outros Autores: Guerreiro, F., Correia, J.B., Galatanu, A., Rosinski, M., Monge, M. A., Munoz, A., Alves, E., Almeida Carvalho, Patricia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.9/2957
Resumo: Composites consisting of tantalum fiber/powder dispersed in a nanostructured W matrix have been consolidated by spark and pulse plasma sintering as well as by hot isostatic pressing. The microstructural observations revealed that the tungsten–tantalum fiber composites consolidated by hot isostatic pressing and pulse plasma sintering presented a continuous layer of Ta2O5 phase at the W/Ta interfaces, while the samples consolidated by spark plasma sintering evidenced a Ta + Ta2O5 eutectic mixture due to the higher temperature of this consolidation process. Similar results have been obtained for the tungsten–tantalum powder composites. A (W, Ta) solid solution was detected around the prior nanostructured W particles in tungsten–tantalum powder composites consolidated by spark and pulse plasma sintering. Higher densifications were obtained for composites consolidated by hot isostatic pressing and pulse plasma sintering.
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spelling Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sinteringTungstenTantalumSpark plasma sinteringHot isostatic pressingComposites consisting of tantalum fiber/powder dispersed in a nanostructured W matrix have been consolidated by spark and pulse plasma sintering as well as by hot isostatic pressing. The microstructural observations revealed that the tungsten–tantalum fiber composites consolidated by hot isostatic pressing and pulse plasma sintering presented a continuous layer of Ta2O5 phase at the W/Ta interfaces, while the samples consolidated by spark plasma sintering evidenced a Ta + Ta2O5 eutectic mixture due to the higher temperature of this consolidation process. Similar results have been obtained for the tungsten–tantalum powder composites. A (W, Ta) solid solution was detected around the prior nanostructured W particles in tungsten–tantalum powder composites consolidated by spark and pulse plasma sintering. Higher densifications were obtained for composites consolidated by hot isostatic pressing and pulse plasma sintering.ElsevierRepositório do LNEGDias, MartaGuerreiro, F.Correia, J.B.Galatanu, A.Rosinski, M.Monge, M. A.Munoz, A.Alves, E.Almeida Carvalho, Patricia2016-05-02T12:10:55Z2015-01-01T00:00:00Z2015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/2957engDias, M.; Guerreiro, F.; Correia, J.B. [et.al.]. - Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering. In: Fusion Engineering and Design, 2015, Vol. 98-99, p. 1950-19550920-379610.1016/j.fusengdes.2015.06.178info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-06T12:28:15Zoai:repositorio.lneg.pt:10400.9/2957Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:36:07.336453Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering
title Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering
spellingShingle Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering
Dias, Marta
Tungsten
Tantalum
Spark plasma sintering
Hot isostatic pressing
title_short Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering
title_full Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering
title_fullStr Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering
title_full_unstemmed Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering
title_sort Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering
author Dias, Marta
author_facet Dias, Marta
Guerreiro, F.
Correia, J.B.
Galatanu, A.
Rosinski, M.
Monge, M. A.
Munoz, A.
Alves, E.
Almeida Carvalho, Patricia
author_role author
author2 Guerreiro, F.
Correia, J.B.
Galatanu, A.
Rosinski, M.
Monge, M. A.
Munoz, A.
Alves, E.
Almeida Carvalho, Patricia
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório do LNEG
dc.contributor.author.fl_str_mv Dias, Marta
Guerreiro, F.
Correia, J.B.
Galatanu, A.
Rosinski, M.
Monge, M. A.
Munoz, A.
Alves, E.
Almeida Carvalho, Patricia
dc.subject.por.fl_str_mv Tungsten
Tantalum
Spark plasma sintering
Hot isostatic pressing
topic Tungsten
Tantalum
Spark plasma sintering
Hot isostatic pressing
description Composites consisting of tantalum fiber/powder dispersed in a nanostructured W matrix have been consolidated by spark and pulse plasma sintering as well as by hot isostatic pressing. The microstructural observations revealed that the tungsten–tantalum fiber composites consolidated by hot isostatic pressing and pulse plasma sintering presented a continuous layer of Ta2O5 phase at the W/Ta interfaces, while the samples consolidated by spark plasma sintering evidenced a Ta + Ta2O5 eutectic mixture due to the higher temperature of this consolidation process. Similar results have been obtained for the tungsten–tantalum powder composites. A (W, Ta) solid solution was detected around the prior nanostructured W particles in tungsten–tantalum powder composites consolidated by spark and pulse plasma sintering. Higher densifications were obtained for composites consolidated by hot isostatic pressing and pulse plasma sintering.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-01T00:00:00Z
2015-01-01T00:00:00Z
2016-05-02T12:10:55Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.9/2957
url http://hdl.handle.net/10400.9/2957
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Dias, M.; Guerreiro, F.; Correia, J.B. [et.al.]. - Consolidation of W–Ta composites: hot isostatic pressing and spark and pulse plasma sintering. In: Fusion Engineering and Design, 2015, Vol. 98-99, p. 1950-1955
0920-3796
10.1016/j.fusengdes.2015.06.178
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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