Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3

Autores
Abdala, Paula Macarena; Fantini, Márcia C. A.; Craievich, Aldo Felix; Lamas, Diego Germán
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
ZrO2-10, 12 and 14 mol% Sc2O3 nanopowders were prepared by using a nitrate-lysine gel-combustion synthesis. These materials were studied by synchrotron X-ray powder diffraction (SXPD) and Raman spectroscopy after calcination at different temperatures from 650 to 1200 1C, which led to samples with different average crystallite sizes, up to about 100 nm. The results from SXPD and Raman analyses indicate that, depending on Sc2O3 content, the metastable t0 0-form of the tetragonal phase or the cubic phase are fully retained at room temperature in nanocrystalline powders, provided an average crystallite sizes lower than B30 nm. By contrast, powders with larger average crystallite sizes exhibit the stable rhombohedral, b and g, phases and do not retain or very partially retain the metastable t0 0 and cubic ones.
Fil: Abdala, Paula Macarena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas. Centro de Investigaciones en Sólidos; Argentina
Fil: Fantini, Márcia C. A.. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; Brasil
Fil: Craievich, Aldo Felix. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; Brasil
Fil: Lamas, Diego Germán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas. Centro de Investigaciones en Sólidos; Argentina
Materia
Nanoceramics
ZrO2-Sc2O3
Metastable phases
Synchrotron X-ray powder diffraction
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:11336/140308
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/140308
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3Abdala, Paula MacarenaFantini, Márcia C. A.Craievich, Aldo FelixLamas, Diego GermánNanoceramicsZrO2-Sc2O3Metastable phasesSynchrotron X-ray powder diffractionhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2ZrO2-10, 12 and 14 mol% Sc2O3 nanopowders were prepared by using a nitrate-lysine gel-combustion synthesis. These materials were studied by synchrotron X-ray powder diffraction (SXPD) and Raman spectroscopy after calcination at different temperatures from 650 to 1200 1C, which led to samples with different average crystallite sizes, up to about 100 nm. The results from SXPD and Raman analyses indicate that, depending on Sc2O3 content, the metastable t0 0-form of the tetragonal phase or the cubic phase are fully retained at room temperature in nanocrystalline powders, provided an average crystallite sizes lower than B30 nm. By contrast, powders with larger average crystallite sizes exhibit the stable rhombohedral, b and g, phases and do not retain or very partially retain the metastable t0 0 and cubic ones.Fil: Abdala, Paula Macarena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas. Centro de Investigaciones en Sólidos; ArgentinaFil: Fantini, Márcia C. A.. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; BrasilFil: Craievich, Aldo Felix. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; BrasilFil: Lamas, Diego Germán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas. Centro de Investigaciones en Sólidos; ArgentinaRoyal Society of Chemistry2010-01-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/140308Abdala, Paula Macarena; Fantini, Márcia C. A.; Craievich, Aldo Felix; Lamas, Diego Germán; Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 12; 27-1-2010; 2822-28291463-90761463-9084CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2010/cp/b922541binfo:eu-repo/semantics/altIdentifier/doi/10.1039/b922541binfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:41:01Zoai:ri.conicet.gov.ar:11336/140308instacron: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 10:41:01.46CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3
title Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3
spellingShingle Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3
Abdala, Paula Macarena
Nanoceramics
ZrO2-Sc2O3
Metastable phases
Synchrotron X-ray powder diffraction
title_short Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3
title_full Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3
title_fullStr Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3
title_full_unstemmed Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3
title_sort Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3
dc.creator.none.fl_str_mv Abdala, Paula Macarena
Fantini, Márcia C. A.
Craievich, Aldo Felix
Lamas, Diego Germán
author Abdala, Paula Macarena
author_facet Abdala, Paula Macarena
Fantini, Márcia C. A.
Craievich, Aldo Felix
Lamas, Diego Germán
author_role author
author2 Fantini, Márcia C. A.
Craievich, Aldo Felix
Lamas, Diego Germán
author2_role author
author
author
dc.subject.none.fl_str_mv Nanoceramics
ZrO2-Sc2O3
Metastable phases
Synchrotron X-ray powder diffraction
topic Nanoceramics
ZrO2-Sc2O3
Metastable phases
Synchrotron X-ray powder diffraction
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv ZrO2-10, 12 and 14 mol% Sc2O3 nanopowders were prepared by using a nitrate-lysine gel-combustion synthesis. These materials were studied by synchrotron X-ray powder diffraction (SXPD) and Raman spectroscopy after calcination at different temperatures from 650 to 1200 1C, which led to samples with different average crystallite sizes, up to about 100 nm. The results from SXPD and Raman analyses indicate that, depending on Sc2O3 content, the metastable t0 0-form of the tetragonal phase or the cubic phase are fully retained at room temperature in nanocrystalline powders, provided an average crystallite sizes lower than B30 nm. By contrast, powders with larger average crystallite sizes exhibit the stable rhombohedral, b and g, phases and do not retain or very partially retain the metastable t0 0 and cubic ones.
Fil: Abdala, Paula Macarena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas. Centro de Investigaciones en Sólidos; Argentina
Fil: Fantini, Márcia C. A.. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; Brasil
Fil: Craievich, Aldo Felix. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; Brasil
Fil: Lamas, Diego Germán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas. Centro de Investigaciones en Sólidos; Argentina
description ZrO2-10, 12 and 14 mol% Sc2O3 nanopowders were prepared by using a nitrate-lysine gel-combustion synthesis. These materials were studied by synchrotron X-ray powder diffraction (SXPD) and Raman spectroscopy after calcination at different temperatures from 650 to 1200 1C, which led to samples with different average crystallite sizes, up to about 100 nm. The results from SXPD and Raman analyses indicate that, depending on Sc2O3 content, the metastable t0 0-form of the tetragonal phase or the cubic phase are fully retained at room temperature in nanocrystalline powders, provided an average crystallite sizes lower than B30 nm. By contrast, powders with larger average crystallite sizes exhibit the stable rhombohedral, b and g, phases and do not retain or very partially retain the metastable t0 0 and cubic ones.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-27
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/11336/140308
Abdala, Paula Macarena; Fantini, Márcia C. A.; Craievich, Aldo Felix; Lamas, Diego Germán; Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 12; 27-1-2010; 2822-2829
1463-9076
1463-9084
CONICET Digital
CONICET
url http://hdl.handle.net/11336/140308
identifier_str_mv Abdala, Paula Macarena; Fantini, Márcia C. A.; Craievich, Aldo Felix; Lamas, Diego Germán; Crystallite size-dependent phases in nanocrystalline ZrO2–Sc2O3; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 12; 27-1-2010; 2822-2829
1463-9076
1463-9084
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://pubs.rsc.org/en/content/articlelanding/2010/cp/b922541b
info:eu-repo/semantics/altIdentifier/doi/10.1039/b922541b
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 Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
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 13.070432

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