Experimental determination of U diffusion in α-Ti

Autores
Perez, Rodolfo Ariel; Gordillo, Jorge A.; Di Lalla, Nicolás
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
α-spectrometry was used in order to measure the diffusion of U in bulk α-Ti in the temperature range 863–1123 K (540–850 °C). A straight Arrhenius plot was found, giving diffusion parameters Q = 297 kJ/mol and D 0 = 5 × 10−3 m2/s, which are similar to the α-Ti self-diffusion ones, when measured in Ti samples with a similar impurity content than presently. This behaviour is compatible with the hypothesis of U diffusing via a vacancy-assisted mechanism in the α-Ti lattice and contrasts with older results in which the activation energy is almost a third the self-diffusion one, even lower than the vacancy formation energy.
Fil: Perez, Rodolfo Ariel. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Gordillo, Jorge A.. Comisión Nacional de Energía Atómica; Argentina
Fil: Di Lalla, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Diffusion
Uranium
Titanium
Alpha-Spectrometry
Nuclear Materials
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:11336/22639
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/22639
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Experimental determination of U diffusion in α-TiPerez, Rodolfo ArielGordillo, Jorge A.Di Lalla, NicolásDiffusionUraniumTitaniumAlpha-SpectrometryNuclear Materialsα-spectrometry was used in order to measure the diffusion of U in bulk α-Ti in the temperature range 863–1123 K (540–850 °C). A straight Arrhenius plot was found, giving diffusion parameters Q = 297 kJ/mol and D 0 = 5 × 10−3 m2/s, which are similar to the α-Ti self-diffusion ones, when measured in Ti samples with a similar impurity content than presently. This behaviour is compatible with the hypothesis of U diffusing via a vacancy-assisted mechanism in the α-Ti lattice and contrasts with older results in which the activation energy is almost a third the self-diffusion one, even lower than the vacancy formation energy.Fil: Perez, Rodolfo Ariel. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Gordillo, Jorge A.. Comisión Nacional de Energía Atómica; ArgentinaFil: Di Lalla, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaTaylor & Francis2013-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22639Perez, Rodolfo Ariel; Gordillo, Jorge A.; Di Lalla, Nicolás; Experimental determination of U diffusion in α-Ti; Taylor & Francis; Philosophical Magazine; 93; 17; 2-2013; 2219-22271478-6435CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/14786435.2013.765991info:eu-repo/semantics/altIdentifier/doi/10.1080/14786435.2013.765991info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:00:43Zoai:ri.conicet.gov.ar:11336/22639instacron: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:34982025-10-22 12:00:43.812CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Experimental determination of U diffusion in α-Ti
title Experimental determination of U diffusion in α-Ti
spellingShingle Experimental determination of U diffusion in α-Ti
Perez, Rodolfo Ariel
Diffusion
Uranium
Titanium
Alpha-Spectrometry
Nuclear Materials
title_short Experimental determination of U diffusion in α-Ti
title_full Experimental determination of U diffusion in α-Ti
title_fullStr Experimental determination of U diffusion in α-Ti
title_full_unstemmed Experimental determination of U diffusion in α-Ti
title_sort Experimental determination of U diffusion in α-Ti
dc.creator.none.fl_str_mv Perez, Rodolfo Ariel
Gordillo, Jorge A.
Di Lalla, Nicolás
author Perez, Rodolfo Ariel
author_facet Perez, Rodolfo Ariel
Gordillo, Jorge A.
Di Lalla, Nicolás
author_role author
author2 Gordillo, Jorge A.
Di Lalla, Nicolás
author2_role author
author
dc.subject.none.fl_str_mv Diffusion
Uranium
Titanium
Alpha-Spectrometry
Nuclear Materials
topic Diffusion
Uranium
Titanium
Alpha-Spectrometry
Nuclear Materials
dc.description.none.fl_txt_mv α-spectrometry was used in order to measure the diffusion of U in bulk α-Ti in the temperature range 863–1123 K (540–850 °C). A straight Arrhenius plot was found, giving diffusion parameters Q = 297 kJ/mol and D 0 = 5 × 10−3 m2/s, which are similar to the α-Ti self-diffusion ones, when measured in Ti samples with a similar impurity content than presently. This behaviour is compatible with the hypothesis of U diffusing via a vacancy-assisted mechanism in the α-Ti lattice and contrasts with older results in which the activation energy is almost a third the self-diffusion one, even lower than the vacancy formation energy.
Fil: Perez, Rodolfo Ariel. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Gordillo, Jorge A.. Comisión Nacional de Energía Atómica; Argentina
Fil: Di Lalla, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description α-spectrometry was used in order to measure the diffusion of U in bulk α-Ti in the temperature range 863–1123 K (540–850 °C). A straight Arrhenius plot was found, giving diffusion parameters Q = 297 kJ/mol and D 0 = 5 × 10−3 m2/s, which are similar to the α-Ti self-diffusion ones, when measured in Ti samples with a similar impurity content than presently. This behaviour is compatible with the hypothesis of U diffusing via a vacancy-assisted mechanism in the α-Ti lattice and contrasts with older results in which the activation energy is almost a third the self-diffusion one, even lower than the vacancy formation energy.
publishDate 2013
dc.date.none.fl_str_mv 2013-02
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/11336/22639
Perez, Rodolfo Ariel; Gordillo, Jorge A.; Di Lalla, Nicolás; Experimental determination of U diffusion in α-Ti; Taylor & Francis; Philosophical Magazine; 93; 17; 2-2013; 2219-2227
1478-6435
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22639
identifier_str_mv Perez, Rodolfo Ariel; Gordillo, Jorge A.; Di Lalla, Nicolás; Experimental determination of U diffusion in α-Ti; Taylor & Francis; Philosophical Magazine; 93; 17; 2-2013; 2219-2227
1478-6435
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/14786435.2013.765991
info:eu-repo/semantics/altIdentifier/doi/10.1080/14786435.2013.765991
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 Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
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 12.982451

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