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dc.contributor.author
Perez, Rodolfo Ariel
dc.contributor.author
Torres, D. N.
dc.contributor.author
Dyment, Fanny
dc.date.available
2024-09-23T15:19:46Z
dc.date.issued
2009-04
dc.identifier.citation
Perez, Rodolfo Ariel; Torres, D. N.; Dyment, Fanny; As diffusion in ferromagnetic α-Fe; Springer; Applied Physics A: Materials Science and Processing; 97; 2; 4-2009; 381-385
dc.identifier.issn
0947-8396
dc.identifier.uri
http://hdl.handle.net/11336/244833
dc.description.abstract
Diffusion of As in á-Fe was studied. Diffusion couples were formed by ion implantation; measurements were made in the 673–1073 K temperature range using the heavy ion Rutherford backscattering (HIRBS) technique as the analysis tool. A curved Arrhenius plot was obtained, as a product of the ferromagnetism effect on diffusion; the previously developed model for diffusion of non-magnetic impurities in ferromagnetic Fe fits the data perfectly well. As diffusion is, on average, two orders of magnitude faster than self-diffusion given its smaller atomic radius (110 pm against 140 pm for Fe). Assuming a total increment in the activation energy due to the ferromagnetic alignment áQ = 40 kJ mol−1, diffusion parameters for the paramagnetic region could be extrapolated, these being the preexponential factor Dp0= 10−5 m2 s−1 and the activation energy Qp = 197 kJ mol−1.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
As
dc.subject
DIFFUSION
dc.subject
FERROMAGNETIC
dc.subject
ALPHA-Fe
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
As diffusion in ferromagnetic α-Fe
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-09-23T13:50:12Z
dc.journal.volume
97
dc.journal.number
2
dc.journal.pagination
381-385
dc.journal.pais
Alemania
dc.description.fil
Fil: Perez, Rodolfo Ariel. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Torres, D. N.. Comisión Nacional de Energía Atómica; Argentina
dc.description.fil
Fil: Dyment, Fanny. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Applied Physics A: Materials Science and Processing
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00339-009-5221-3
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00339-009-5221-3
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