Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems

Autores
Obregon, Sergio Alejandro; Zelaya, Maria Eugenia; Esquivel, Marcelo Ricardo Oscar
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work, the characteristics of a commercial sample of LaNi5 are compared to those of an experimental one obtained by mechanical alloying followed by low temperature annealing. The nominal composition of the experimental sample is Mm-4Ni-1Al where Mm =La0.25Ce0.52Nd0.17Pr0.06. The morphology, nano, micro and structure of each sample are analyzed. Morphology is analyzed by both SEM and TEM. Micro and structure were studied by XRD and nanostructure by TEM. To the detection limits, the commercial sample is a mono phase. The mono phase possesses good crystalline characteristics closely related to samples obtained at annealing in near equilibrium conditions (T > 800 °C, t > 48 h). The Mm-4Ni-1Al sample has an AB5 structure as a major phase. The minor phases were characterized by XRD and TEM. The analysis is completed with the study of the hydrogen sorption properties of each sample. Finally, both types of properties are correlated. The opportunities of improvement of the synthesis method are discussed in relation to the investment costs of each production technique.
Fil: Obregon, Sergio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Zelaya, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Esquivel, Marcelo Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina
Materia
HYDROGEN THERMAL COMPRESSION
TEM
SEM
XRD
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/45552
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systemsObregon, Sergio AlejandroZelaya, Maria EugeniaEsquivel, Marcelo Ricardo OscarHYDROGEN THERMAL COMPRESSIONTEMSEMXRDhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2In this work, the characteristics of a commercial sample of LaNi5 are compared to those of an experimental one obtained by mechanical alloying followed by low temperature annealing. The nominal composition of the experimental sample is Mm-4Ni-1Al where Mm =La0.25Ce0.52Nd0.17Pr0.06. The morphology, nano, micro and structure of each sample are analyzed. Morphology is analyzed by both SEM and TEM. Micro and structure were studied by XRD and nanostructure by TEM. To the detection limits, the commercial sample is a mono phase. The mono phase possesses good crystalline characteristics closely related to samples obtained at annealing in near equilibrium conditions (T > 800 °C, t > 48 h). The Mm-4Ni-1Al sample has an AB5 structure as a major phase. The minor phases were characterized by XRD and TEM. The analysis is completed with the study of the hydrogen sorption properties of each sample. Finally, both types of properties are correlated. The opportunities of improvement of the synthesis method are discussed in relation to the investment costs of each production technique.Fil: Obregon, Sergio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Zelaya, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Esquivel, Marcelo Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; ArgentinaElsevier2015-03-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/45552Obregon, Sergio Alejandro; Zelaya, Maria Eugenia; Esquivel, Marcelo Ricardo Oscar; Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems; Elsevier; Procedia Materials Science; 9; 2-3-2015; 450-4592211-8128CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.mspro.2015.05.016info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S221181281500200Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:20:46Zoai:ri.conicet.gov.ar:11336/45552instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:20:46.51CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems
title Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems
spellingShingle Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems
Obregon, Sergio Alejandro
HYDROGEN THERMAL COMPRESSION
TEM
SEM
XRD
title_short Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems
title_full Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems
title_fullStr Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems
title_full_unstemmed Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems
title_sort Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems
dc.creator.none.fl_str_mv Obregon, Sergio Alejandro
Zelaya, Maria Eugenia
Esquivel, Marcelo Ricardo Oscar
author Obregon, Sergio Alejandro
author_facet Obregon, Sergio Alejandro
Zelaya, Maria Eugenia
Esquivel, Marcelo Ricardo Oscar
author_role author
author2 Zelaya, Maria Eugenia
Esquivel, Marcelo Ricardo Oscar
author2_role author
author
dc.subject.none.fl_str_mv HYDROGEN THERMAL COMPRESSION
TEM
SEM
XRD
topic HYDROGEN THERMAL COMPRESSION
TEM
SEM
XRD
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In this work, the characteristics of a commercial sample of LaNi5 are compared to those of an experimental one obtained by mechanical alloying followed by low temperature annealing. The nominal composition of the experimental sample is Mm-4Ni-1Al where Mm =La0.25Ce0.52Nd0.17Pr0.06. The morphology, nano, micro and structure of each sample are analyzed. Morphology is analyzed by both SEM and TEM. Micro and structure were studied by XRD and nanostructure by TEM. To the detection limits, the commercial sample is a mono phase. The mono phase possesses good crystalline characteristics closely related to samples obtained at annealing in near equilibrium conditions (T > 800 °C, t > 48 h). The Mm-4Ni-1Al sample has an AB5 structure as a major phase. The minor phases were characterized by XRD and TEM. The analysis is completed with the study of the hydrogen sorption properties of each sample. Finally, both types of properties are correlated. The opportunities of improvement of the synthesis method are discussed in relation to the investment costs of each production technique.
Fil: Obregon, Sergio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Zelaya, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Esquivel, Marcelo Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina
description In this work, the characteristics of a commercial sample of LaNi5 are compared to those of an experimental one obtained by mechanical alloying followed by low temperature annealing. The nominal composition of the experimental sample is Mm-4Ni-1Al where Mm =La0.25Ce0.52Nd0.17Pr0.06. The morphology, nano, micro and structure of each sample are analyzed. Morphology is analyzed by both SEM and TEM. Micro and structure were studied by XRD and nanostructure by TEM. To the detection limits, the commercial sample is a mono phase. The mono phase possesses good crystalline characteristics closely related to samples obtained at annealing in near equilibrium conditions (T > 800 °C, t > 48 h). The Mm-4Ni-1Al sample has an AB5 structure as a major phase. The minor phases were characterized by XRD and TEM. The analysis is completed with the study of the hydrogen sorption properties of each sample. Finally, both types of properties are correlated. The opportunities of improvement of the synthesis method are discussed in relation to the investment costs of each production technique.
publishDate 2015
dc.date.none.fl_str_mv 2015-03-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/45552
Obregon, Sergio Alejandro; Zelaya, Maria Eugenia; Esquivel, Marcelo Ricardo Oscar; Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems; Elsevier; Procedia Materials Science; 9; 2-3-2015; 450-459
2211-8128
CONICET Digital
CONICET
url http://hdl.handle.net/11336/45552
identifier_str_mv Obregon, Sergio Alejandro; Zelaya, Maria Eugenia; Esquivel, Marcelo Ricardo Oscar; Micro and nanostructured phases obtained by mechanical alloying - low temperature annealing in AB5-H2 systems; Elsevier; Procedia Materials Science; 9; 2-3-2015; 450-459
2211-8128
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.mspro.2015.05.016
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S221181281500200X
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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