Effect of interstitial impurities on internal friction measurements in niobium

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dc.contributor.authorFlorencio, O.
dc.contributor.authorGrandini, Carlos Roberto [UNESP]
dc.contributor.authorBotta, FWJ
dc.contributor.authorGuedes, P. R.
dc.contributor.authorSilva, P. S.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:21:33Z
dc.date.available2014-05-20T15:21:33Z
dc.date.issued2004-04-15
dc.description.abstractMeasurements of internal friction as a function of temperature were carried out in samples of mobium containing different amounts of interstitial solutes (oxygen and nitrogen) and one sample of mobium containing initially only nitrogen as interstitial solute. The experimental spectra of internal friction as a function of temperature were obtained with a torsion pendulum of the inverted Ke-type and resolved, using the method of successive subtraction, into a series of constituent Debye peaks corresponding to different interactions. For each relaxation process it was possible to obtain the height (Q(max)(-1)) and temperature (T-p) of the peak, the activation energy (E) and the relaxation time (t(o)). The height, shape and temperature of these peaks depend on the concentration of interstitial elements. The observed peaks were associated with matrix-interstitial (Nb-O, Nb-N) and interstitial-interstitial (O-N) interaction processes. (C) 2003 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Fed Sao Carlos, Dept Mat Engn, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUNESP, Dept Fis, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUnespUNESP, Dept Fis, BR-17033360 Bauru, SP, Brazil
dc.format.extent131-134
dc.identifierhttp://dx.doi.org/10.1016/j.msea.2003.08.102
dc.identifier.citationMaterials Science and Engineering A-structural Materials Properties Microstructure and Processing. Lausanne: Elsevier B.V. Sa, v. 370, n. 1-2, p. 131-134, 2004.
dc.identifier.doi10.1016/j.msea.2003.08.102
dc.identifier.issn0921-5093
dc.identifier.lattes2949983867418338
dc.identifier.lattes1713208286133403
dc.identifier.orcid0000-0002-3336-309X
dc.identifier.orcid0000-0002-7801-8505
dc.identifier.urihttp://hdl.handle.net/11449/32673
dc.identifier.wosWOS:000221238500024
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofMaterials Science and Engineering A: Structural Materials Properties Microstructure and Processing
dc.relation.ispartofjcr3.414
dc.relation.ispartofsjr1,694
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectpoints defectpt
dc.subjectniobiumpt
dc.subjectinternal frictionpt
dc.titleEffect of interstitial impurities on internal friction measurements in niobiumen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes2949983867418338[2]
unesp.author.lattes1713208286133403[5]
unesp.author.orcid0000-0002-3336-309X[2]
unesp.author.orcid0000-0002-7801-8505[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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