Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling

Autores
Fernández van Raap, Marcela Beatriz; Socolovsky, Leandro Martín; Sánchez, Francisco Homero; Torriani, L.
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Small-angle x-ray scattering measurements on ball-milled FeyCu1−y giantmagnetoresistivealloys (0.141 y 0.45) have been performed usingsynchrotron radiation. For samples with different nominal compositions,prepared under exactly the same conditions, the scattered intensity recordedas a function of the wavevector varied systematically. For this reason, thestrong scattering signal was attributed mainly to composition fluctuations inthe crystalline grains. The system was treated as a two-phase model consistingof Fe-rich regions in a homogeneous Cu matrix, with composition-dependentrelative volume fractions. Real-space analysis of the scattering was performedin terms of a volumetric distribution of spherical particles. Results indicatethat the main contribution corresponds to 2 nm scattering objects of welldefineddensity contrast. The invariantQwas calculated to assess the variationsin electron-density contrast as a function of the Fe content in the samples.Calculations based on these results allowed the determination of 0.35 at.% ironconcentration in the iron-rich phase for all the nominal compositions studied.
Fil: Fernández van Raap, Marcela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Socolovsky, Leandro Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Sánchez, Francisco Homero. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Torriani, L.. Unicamp; Brasil
Materia
SAXS
Nanocompositos
Aleaciones FeCu
Ball milling
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:11336/98626
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball millingFernández van Raap, Marcela BeatrizSocolovsky, Leandro MartínSánchez, Francisco HomeroTorriani, L.SAXSNanocompositosAleaciones FeCuBall millinghttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Small-angle x-ray scattering measurements on ball-milled FeyCu1−y giantmagnetoresistivealloys (0.141 y 0.45) have been performed usingsynchrotron radiation. For samples with different nominal compositions,prepared under exactly the same conditions, the scattered intensity recordedas a function of the wavevector varied systematically. For this reason, thestrong scattering signal was attributed mainly to composition fluctuations inthe crystalline grains. The system was treated as a two-phase model consistingof Fe-rich regions in a homogeneous Cu matrix, with composition-dependentrelative volume fractions. Real-space analysis of the scattering was performedin terms of a volumetric distribution of spherical particles. Results indicatethat the main contribution corresponds to 2 nm scattering objects of welldefineddensity contrast. The invariantQwas calculated to assess the variationsin electron-density contrast as a function of the Fe content in the samples.Calculations based on these results allowed the determination of 0.35 at.% ironconcentration in the iron-rich phase for all the nominal compositions studied.Fil: Fernández van Raap, Marcela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Socolovsky, Leandro Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Sánchez, Francisco Homero. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Torriani, L.. Unicamp; BrasilIOP Publishing2002-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98626Fernández van Raap, Marcela Beatriz; Socolovsky, Leandro Martín; Sánchez, Francisco Homero; Torriani, L.; Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling; IOP Publishing; Journal of Physics: Condensed Matter; 14; 1-2002; 857-8640953-8984CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0953-8984/14/4/318info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:47:09Zoai:ri.conicet.gov.ar:11336/98626instacron: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:34982025-09-03 09:47:10.245CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling
title Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling
spellingShingle Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling
Fernández van Raap, Marcela Beatriz
SAXS
Nanocompositos
Aleaciones FeCu
Ball milling
title_short Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling
title_full Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling
title_fullStr Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling
title_full_unstemmed Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling
title_sort Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling
dc.creator.none.fl_str_mv Fernández van Raap, Marcela Beatriz
Socolovsky, Leandro Martín
Sánchez, Francisco Homero
Torriani, L.
author Fernández van Raap, Marcela Beatriz
author_facet Fernández van Raap, Marcela Beatriz
Socolovsky, Leandro Martín
Sánchez, Francisco Homero
Torriani, L.
author_role author
author2 Socolovsky, Leandro Martín
Sánchez, Francisco Homero
Torriani, L.
author2_role author
author
author
dc.subject.none.fl_str_mv SAXS
Nanocompositos
Aleaciones FeCu
Ball milling
topic SAXS
Nanocompositos
Aleaciones FeCu
Ball milling
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Small-angle x-ray scattering measurements on ball-milled FeyCu1−y giantmagnetoresistivealloys (0.141 y 0.45) have been performed usingsynchrotron radiation. For samples with different nominal compositions,prepared under exactly the same conditions, the scattered intensity recordedas a function of the wavevector varied systematically. For this reason, thestrong scattering signal was attributed mainly to composition fluctuations inthe crystalline grains. The system was treated as a two-phase model consistingof Fe-rich regions in a homogeneous Cu matrix, with composition-dependentrelative volume fractions. Real-space analysis of the scattering was performedin terms of a volumetric distribution of spherical particles. Results indicatethat the main contribution corresponds to 2 nm scattering objects of welldefineddensity contrast. The invariantQwas calculated to assess the variationsin electron-density contrast as a function of the Fe content in the samples.Calculations based on these results allowed the determination of 0.35 at.% ironconcentration in the iron-rich phase for all the nominal compositions studied.
Fil: Fernández van Raap, Marcela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Socolovsky, Leandro Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Sánchez, Francisco Homero. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Torriani, L.. Unicamp; Brasil
description Small-angle x-ray scattering measurements on ball-milled FeyCu1−y giantmagnetoresistivealloys (0.141 y 0.45) have been performed usingsynchrotron radiation. For samples with different nominal compositions,prepared under exactly the same conditions, the scattered intensity recordedas a function of the wavevector varied systematically. For this reason, thestrong scattering signal was attributed mainly to composition fluctuations inthe crystalline grains. The system was treated as a two-phase model consistingof Fe-rich regions in a homogeneous Cu matrix, with composition-dependentrelative volume fractions. Real-space analysis of the scattering was performedin terms of a volumetric distribution of spherical particles. Results indicatethat the main contribution corresponds to 2 nm scattering objects of welldefineddensity contrast. The invariantQwas calculated to assess the variationsin electron-density contrast as a function of the Fe content in the samples.Calculations based on these results allowed the determination of 0.35 at.% ironconcentration in the iron-rich phase for all the nominal compositions studied.
publishDate 2002
dc.date.none.fl_str_mv 2002-01
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/11336/98626
Fernández van Raap, Marcela Beatriz; Socolovsky, Leandro Martín; Sánchez, Francisco Homero; Torriani, L.; Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling; IOP Publishing; Journal of Physics: Condensed Matter; 14; 1-2002; 857-864
0953-8984
CONICET Digital
CONICET
url http://hdl.handle.net/11336/98626
identifier_str_mv Fernández van Raap, Marcela Beatriz; Socolovsky, Leandro Martín; Sánchez, Francisco Homero; Torriani, L.; Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling; IOP Publishing; Journal of Physics: Condensed Matter; 14; 1-2002; 857-864
0953-8984
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0953-8984/14/4/318
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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 13.13397

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