Mechanochemical synthesis of a La0.67Ce0.21Nd 0.08Pr0.04Ni5 intermetallic compound

The mechanochemical synthesis of a La<inf>0.67</inf>Ce <inf>0.21</inf>Nd<inf>0.08</inf>Pr<inf>0.04</inf>Ni<inf>5</inf> intermetallic is studied. The intermetallic is synthesised from a mixture of LaNi<inf>5</inf> and La<inf&g...

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Autores: Blanco, M. Valeria, Esquivel, Marcelo Ricardo
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2013
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/414316
Acesso em linha:http://hdl.handle.net/10261/414316
https://api.elsevier.com/content/abstract/scopus_id/84870489170
Access Level:acceso abierto
Palavra-chave:Mechanical alloying
Mechanical milling
Powder metallurgy
XRD
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spelling Mechanochemical synthesis of a La0.67Ce0.21Nd 0.08Pr0.04Ni5 intermetallic compoundBlanco, M. ValeriaEsquivel, Marcelo RicardoMechanical alloyingMechanical millingPowder metallurgyXRDThe mechanochemical synthesis of a La<inf>0.67</inf>Ce <inf>0.21</inf>Nd<inf>0.08</inf>Pr<inf>0.04</inf>Ni<inf>5</inf> intermetallic is studied. The intermetallic is synthesised from a mixture of LaNi<inf>5</inf> and La<inf>0.25</inf>Ce<inf>0.52</inf>Nd<inf>0.17</inf>Pr<inf>0.06</inf>Ni <inf>5</inf>. The processes controlling the mechanical alloying are characterised as a function of integrated milling time (t<inf>m</inf>). Effects of fracture and cold welding on the sample are identified by scanning electron microscopy. Compositional, microstructural and structural changes are analysed by energy dispersive spectroscopy and X-ray diffraction. The powder obtained has a particle size distribution of 9 ± 1 μm with an average crystallite size of 370 ± 10 Å and strain >10%. The intermetallic compound is annealed in Ar to increase crystallite size and to release strain. The structure is refined by the Rietveld method. Cell parameters are a = 4.982(2) Å and c = 3.980(9) Å, respectively. The advantage of the synthesis method using intermetallics instead of metals/alloys is discussed along with the characteristics of the powder obtained. © 2012 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder.Peer reviewedElsevier202620262013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/414316https://api.elsevier.com/content/abstract/scopus_id/84870489170reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésAdvanced Powder Technologyhttp://doi.org/10.1016/j.apt.2012.02.005Noinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4143162026-05-22T06:33:51Z
dc.title.none.fl_str_mv Mechanochemical synthesis of a La0.67Ce0.21Nd 0.08Pr0.04Ni5 intermetallic compound
title Mechanochemical synthesis of a La0.67Ce0.21Nd 0.08Pr0.04Ni5 intermetallic compound
spellingShingle Mechanochemical synthesis of a La0.67Ce0.21Nd 0.08Pr0.04Ni5 intermetallic compound
Blanco, M. Valeria
Mechanical alloying
Mechanical milling
Powder metallurgy
XRD
title_short Mechanochemical synthesis of a La0.67Ce0.21Nd 0.08Pr0.04Ni5 intermetallic compound
title_full Mechanochemical synthesis of a La0.67Ce0.21Nd 0.08Pr0.04Ni5 intermetallic compound
title_fullStr Mechanochemical synthesis of a La0.67Ce0.21Nd 0.08Pr0.04Ni5 intermetallic compound
title_full_unstemmed Mechanochemical synthesis of a La0.67Ce0.21Nd 0.08Pr0.04Ni5 intermetallic compound
title_sort Mechanochemical synthesis of a La0.67Ce0.21Nd 0.08Pr0.04Ni5 intermetallic compound
dc.creator.none.fl_str_mv Blanco, M. Valeria
Esquivel, Marcelo Ricardo
author Blanco, M. Valeria
author_facet Blanco, M. Valeria
Esquivel, Marcelo Ricardo
author_role author
author2 Esquivel, Marcelo Ricardo
author2_role author
dc.subject.none.fl_str_mv Mechanical alloying
Mechanical milling
Powder metallurgy
XRD
topic Mechanical alloying
Mechanical milling
Powder metallurgy
XRD
description The mechanochemical synthesis of a La<inf>0.67</inf>Ce <inf>0.21</inf>Nd<inf>0.08</inf>Pr<inf>0.04</inf>Ni<inf>5</inf> intermetallic is studied. The intermetallic is synthesised from a mixture of LaNi<inf>5</inf> and La<inf>0.25</inf>Ce<inf>0.52</inf>Nd<inf>0.17</inf>Pr<inf>0.06</inf>Ni <inf>5</inf>. The processes controlling the mechanical alloying are characterised as a function of integrated milling time (t<inf>m</inf>). Effects of fracture and cold welding on the sample are identified by scanning electron microscopy. Compositional, microstructural and structural changes are analysed by energy dispersive spectroscopy and X-ray diffraction. The powder obtained has a particle size distribution of 9 ± 1 μm with an average crystallite size of 370 ± 10 Å and strain >10%. The intermetallic compound is annealed in Ar to increase crystallite size and to release strain. The structure is refined by the Rietveld method. Cell parameters are a = 4.982(2) Å and c = 3.980(9) Å, respectively. The advantage of the synthesis method using intermetallics instead of metals/alloys is discussed along with the characteristics of the powder obtained. © 2012 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder.
publishDate 2013
dc.date.none.fl_str_mv 2013
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/414316
https://api.elsevier.com/content/abstract/scopus_id/84870489170
url http://hdl.handle.net/10261/414316
https://api.elsevier.com/content/abstract/scopus_id/84870489170
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Advanced Powder Technology
http://doi.org/10.1016/j.apt.2012.02.005
No
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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