Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys

Autores
Pozo Lopez, Gabriela del Valle; Fabietti, Luis Maria Rodolfo; Condo, Adriana Maria; Winkler, Elin Lilian; Giordano, Rafael Nicolás; Haberkorn, Nestor Fabian; Urreta, Silvia Elena
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The temperature dependence of the magnetic polarization near the Curie temperature in Ni MnGa stoichiometric alloys, directly processed from the melt in a twin-roller melt-spinning device, is investigated. The effect of the solidification rate on the Hopkinson peak detected is evaluated in samples quenched at three different tangential wheel speeds of 10, 15, and 20 m/s. The resulting microstructures were previously characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and by transmission electronmicroscopy (TEM). EDS results indicated that all the alloys have the composition Ni MnGa; at room temperature and above this temperature, a cubic L ferromagnetic ordered austenitic phase is observed. The Curie temperatures and the magnitude of the Hopkinson effect are estimated from the magnetic polarization versus temperature curves measured in a Faraday balance, in the range 300 K-400 K. As expected for samples with identical composition, the Curie temperatures remain insensitive to the processing route. At low fields (10 mT), the magnitude of the Hopkinson effect is larger in samples quenched at lower rates and it practically vanishes in all the alloys for applied fields near 100 mT.
Fil: Pozo Lopez, Gabriela del Valle. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Fabietti, Luis Maria Rodolfo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Condo, Adriana Maria. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Fil: Winkler, Elin Lilian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Giordano, Rafael Nicolás. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Haberkorn, Nestor Fabian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Urreta, Silvia Elena. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Materia
Hopkinson Effect
Ni2mnga
Shape Memory Alloys
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/19970
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/19970
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloysPozo Lopez, Gabriela del ValleFabietti, Luis Maria RodolfoCondo, Adriana MariaWinkler, Elin LilianGiordano, Rafael NicolásHaberkorn, Nestor FabianUrreta, Silvia ElenaHopkinson EffectNi2mngaShape Memory Alloyshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The temperature dependence of the magnetic polarization near the Curie temperature in Ni MnGa stoichiometric alloys, directly processed from the melt in a twin-roller melt-spinning device, is investigated. The effect of the solidification rate on the Hopkinson peak detected is evaluated in samples quenched at three different tangential wheel speeds of 10, 15, and 20 m/s. The resulting microstructures were previously characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and by transmission electronmicroscopy (TEM). EDS results indicated that all the alloys have the composition Ni MnGa; at room temperature and above this temperature, a cubic L ferromagnetic ordered austenitic phase is observed. The Curie temperatures and the magnitude of the Hopkinson effect are estimated from the magnetic polarization versus temperature curves measured in a Faraday balance, in the range 300 K-400 K. As expected for samples with identical composition, the Curie temperatures remain insensitive to the processing route. At low fields (10 mT), the magnitude of the Hopkinson effect is larger in samples quenched at lower rates and it practically vanishes in all the alloys for applied fields near 100 mT.Fil: Pozo Lopez, Gabriela del Valle. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Fabietti, Luis Maria Rodolfo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Condo, Adriana Maria. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); ArgentinaFil: Winkler, Elin Lilian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Giordano, Rafael Nicolás. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaFil: Haberkorn, Nestor Fabian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Urreta, Silvia Elena. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaInstitute Of Electrical And Electronics Engineers2013-07-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19970Pozo Lopez, Gabriela del Valle; Fabietti, Luis Maria Rodolfo; Condo, Adriana Maria; Winkler, Elin Lilian; Giordano, Rafael Nicolás; et al.; Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys; Institute Of Electrical And Electronics Engineers; Ieee Transactions On Magnetics; 49; 8; 23-7-2013; 4514-45170018-9464CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1109/TMAG.2013.2259617info:eu-repo/semantics/altIdentifier/url/http://ieeexplore.ieee.org/document/6566118info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:17:05Zoai:ri.conicet.gov.ar:11336/19970instacron: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:34982025-09-29 10:17:05.901CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys
title Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys
spellingShingle Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys
Pozo Lopez, Gabriela del Valle
Hopkinson Effect
Ni2mnga
Shape Memory Alloys
title_short Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys
title_full Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys
title_fullStr Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys
title_full_unstemmed Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys
title_sort Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys
dc.creator.none.fl_str_mv Pozo Lopez, Gabriela del Valle
Fabietti, Luis Maria Rodolfo
Condo, Adriana Maria
Winkler, Elin Lilian
Giordano, Rafael Nicolás
Haberkorn, Nestor Fabian
Urreta, Silvia Elena
author Pozo Lopez, Gabriela del Valle
author_facet Pozo Lopez, Gabriela del Valle
Fabietti, Luis Maria Rodolfo
Condo, Adriana Maria
Winkler, Elin Lilian
Giordano, Rafael Nicolás
Haberkorn, Nestor Fabian
Urreta, Silvia Elena
author_role author
author2 Fabietti, Luis Maria Rodolfo
Condo, Adriana Maria
Winkler, Elin Lilian
Giordano, Rafael Nicolás
Haberkorn, Nestor Fabian
Urreta, Silvia Elena
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Hopkinson Effect
Ni2mnga
Shape Memory Alloys
topic Hopkinson Effect
Ni2mnga
Shape Memory Alloys
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The temperature dependence of the magnetic polarization near the Curie temperature in Ni MnGa stoichiometric alloys, directly processed from the melt in a twin-roller melt-spinning device, is investigated. The effect of the solidification rate on the Hopkinson peak detected is evaluated in samples quenched at three different tangential wheel speeds of 10, 15, and 20 m/s. The resulting microstructures were previously characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and by transmission electronmicroscopy (TEM). EDS results indicated that all the alloys have the composition Ni MnGa; at room temperature and above this temperature, a cubic L ferromagnetic ordered austenitic phase is observed. The Curie temperatures and the magnitude of the Hopkinson effect are estimated from the magnetic polarization versus temperature curves measured in a Faraday balance, in the range 300 K-400 K. As expected for samples with identical composition, the Curie temperatures remain insensitive to the processing route. At low fields (10 mT), the magnitude of the Hopkinson effect is larger in samples quenched at lower rates and it practically vanishes in all the alloys for applied fields near 100 mT.
Fil: Pozo Lopez, Gabriela del Valle. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Fabietti, Luis Maria Rodolfo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Condo, Adriana Maria. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Fil: Winkler, Elin Lilian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Giordano, Rafael Nicolás. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Haberkorn, Nestor Fabian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Urreta, Silvia Elena. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
description The temperature dependence of the magnetic polarization near the Curie temperature in Ni MnGa stoichiometric alloys, directly processed from the melt in a twin-roller melt-spinning device, is investigated. The effect of the solidification rate on the Hopkinson peak detected is evaluated in samples quenched at three different tangential wheel speeds of 10, 15, and 20 m/s. The resulting microstructures were previously characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and by transmission electronmicroscopy (TEM). EDS results indicated that all the alloys have the composition Ni MnGa; at room temperature and above this temperature, a cubic L ferromagnetic ordered austenitic phase is observed. The Curie temperatures and the magnitude of the Hopkinson effect are estimated from the magnetic polarization versus temperature curves measured in a Faraday balance, in the range 300 K-400 K. As expected for samples with identical composition, the Curie temperatures remain insensitive to the processing route. At low fields (10 mT), the magnitude of the Hopkinson effect is larger in samples quenched at lower rates and it practically vanishes in all the alloys for applied fields near 100 mT.
publishDate 2013
dc.date.none.fl_str_mv 2013-07-23
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/11336/19970
Pozo Lopez, Gabriela del Valle; Fabietti, Luis Maria Rodolfo; Condo, Adriana Maria; Winkler, Elin Lilian; Giordano, Rafael Nicolás; et al.; Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys; Institute Of Electrical And Electronics Engineers; Ieee Transactions On Magnetics; 49; 8; 23-7-2013; 4514-4517
0018-9464
CONICET Digital
CONICET
url http://hdl.handle.net/11336/19970
identifier_str_mv Pozo Lopez, Gabriela del Valle; Fabietti, Luis Maria Rodolfo; Condo, Adriana Maria; Winkler, Elin Lilian; Giordano, Rafael Nicolás; et al.; Curie temperature and Hopkinson effect in twin roller melt spun Ni2MnGa shape memory alloys; Institute Of Electrical And Electronics Engineers; Ieee Transactions On Magnetics; 49; 8; 23-7-2013; 4514-4517
0018-9464
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1109/TMAG.2013.2259617
info:eu-repo/semantics/altIdentifier/url/http://ieeexplore.ieee.org/document/6566118
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Institute Of Electrical And Electronics Engineers
publisher.none.fl_str_mv Institute Of Electrical And Electronics Engineers
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
_version_ 1844614121060827136
score 13.070432

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