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dc.contributor.author
Moya, Javier Alberto
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dc.date.available
2017-03-20T17:46:01Z
dc.date.issued
2010-07
dc.identifier.citation
Moya, Javier Alberto; Nanocrystals and amorphous matrix phase studies of Finemet-like alloys
containing Ge; Elsevier Science; Journal Of Magnetism And Magnetic Materials; 322; 13; 7-2010; 1784-1792
dc.identifier.issn
0304-8853
dc.identifier.uri
http://hdl.handle.net/11336/14090
dc.description.abstract
Two simple models were developed in order to determine the chemical composition of both nanocrystals and intergranular amorphous phases in nanocrystallized Fe73.5Si13.5B9Nb3Cu1 containing Ge using data from X-ray diffraction and Mössbauer spectroscopy techniques. Saturation magnetization of the amorphous intergranular matrix (Msam) was calculated considering the contribution of the α-Fe(Si,Ge) nanocrystals and saturation magnetization of the alloys. The behavior of Msam with the iron content of the matrix was obtained and discussed. The exchange stiffness constant for the nanograins and for the amorphous phases was determined. The increment in the coercive field (Hc) with increasing Ge content was evaluated using two theoretical models for the random magnetocrystalline anisotropy constant (〈K1〉). Results show that the magnetic hardening observed could not be attributed to an increase in 〈K1〉 but mainly to an important increment of the magnetostriction constant of the α-Fe(Si,Ge) nanocrystals (λscr). Values for λscr are proposed.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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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
Nanocrystalline Material
dc.subject
Soft Magnetic Material
dc.subject
Mossbauer Spectroscopy
dc.subject
Amorphous Material
dc.subject.classification
Nano-materiales
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dc.subject.classification
Nanotecnología
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Nanocrystals and amorphous matrix phase studies of Finemet-like alloys
containing Ge
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-03-20T14:50:54Z
dc.journal.volume
322
dc.journal.number
13
dc.journal.pagination
1784-1792
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Moya, Javier Alberto. Universidad Catolica de Salta. Facultad de Ingenieria E Informatica; Argentina. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Laboratorio de Sólidos Amorfos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Journal Of Magnetism And Magnetic Materials
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jmmm.2009.12.030
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304885309011871
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