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dc.contributor.author
Perez, Rodolfo Ariel
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dc.date.available
2019-03-27T18:20:23Z
dc.date.issued
2017-06
dc.identifier.citation
Perez, Rodolfo Ariel; Uranium diffusion in metals used in nuclear facilities - A new approach; Trans Tech Publications; Defect and Diffusion Forum; 375; 6-2017; 3-17
dc.identifier.issn
1012-0386
dc.identifier.uri
http://hdl.handle.net/11336/72663
dc.description.abstract
Diffusion at infinite dilution of U in metals, with particular emphasis in those used in nuclear facilities, is revisited. Early works present some particularities such as activation enthalpies lower than the vacancy formation enthalpy in the matrix, large differences with self-diffusion in the base material, up to four orders of magnitude differences between measurements performed by different authors in similar temperature ranges, etc. In particular U self-diffusion was qualified as abnormal when compared with other metals. Recent studies by means of á-spectrometry reveal a normal behaviour: Activation enthalpies and pre-exponential factors similar to the self-diffusion one and diffusion coefficient values in the same order of magnitude than self-diffusion. The possible influence of short circuits, impurities and/or uncertainties in the techniques used in the early works is discussed in order to explain the differences obtained.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Trans Tech Publications
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Diffusion
dc.subject
Nuclear Materials
dc.subject
Uranium
dc.subject
Α-Spectrometry
dc.subject.classification
Otras Ciencias Físicas
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Uranium diffusion in metals used in nuclear facilities - A new approach
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-26T13:57:52Z
dc.journal.volume
375
dc.journal.pagination
3-17
dc.journal.pais
Suiza
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dc.journal.ciudad
Zürich
dc.description.fil
Fil: Perez, Rodolfo Ariel. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Defect and Diffusion Forum
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.4028/www.scientific.net/DDF.375.3
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.scientific.net/DDF.375.3
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