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dc.contributor.authorEvenson, Zach
dc.contributor.authorPayes Playa, Alba
dc.contributor.authorChushkin, Y.
dc.contributor.authordi Michiel, Marco
dc.contributor.authorPineda Soler, Eloi
dc.contributor.authorRuta, Beatrice
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2017-11-23T10:58:09Z
dc.date.available2017-11-23T10:58:09Z
dc.date.issued2017-06-14
dc.identifier.citationEvenson, Z., Payes, A., Chushkin, Y., di Michiel, M., Pineda, E., Ruta, B. Comparing the atomic and macroscopic aging dynamics in an amorphous and partially crystalline Zr44Ti11Ni10Cu10Be25 bulk metallic glass. "Journal of materials research", 14 Juny 2017, vol. 32, núm. 11, p. 2014-2021.
dc.identifier.issn0884-2914
dc.identifier.urihttp://hdl.handle.net/2117/111121
dc.descriptionThis article has been published in a revised form in Journal of Materials Research, https://doi.org/10.1557/jmr.2017.187. This version is free to view and download for private research and study only. Not for re-distribution, re-sale or use in derivative works. © Materials Research Society.
dc.description.abstractSeveral recent X-ray photon correlation spectroscopy works have reported an anomalous atomic dynamics in hyperquenched metallic glasses. Here, we compare and contrast these microscopic dynamics with that found in a Zr44Ti11Ni10Cu10Be25 bulk metallic glass, prepared with a cooling rate some 6 orders of magnitude lower. In both cases, structural relaxation in the glass is governed by internal stresses, giving rise to highly compressed density correlation functions. Differently from the fast aging reported in previous studies, here the atomic dynamics displays a slow linear atomic-level aging, while not affecting the shape parameter. Traditional macroscopic phenomenological models fail to capture the temperature dependence of the microscopic structural relaxation time, suggesting a length scale dependence of the aging. Interestingly, the dynamics does not seem to be affected by the presence of a low percentage of frozen nanocrystals and displays a temperature dependence similar to that observed in macroscopic viscosity measurements.
dc.format.extent8 p.
dc.language.isoeng
dc.publisherCambridge University Press
dc.subjectÀrees temàtiques de la UPC::Física::Física de l'estat sòlid::Cristalls
dc.subject.lcshMetal crystals
dc.titleComparing the atomic and macroscopic aging dynamics in an amorphous and partially crystalline Zr44Ti11Ni10Cu10Be25 bulk metallic glass
dc.typeArticle
dc.subject.lemacCristalls metàl·lics
dc.contributor.groupUniversitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials
dc.identifier.doi10.1557/jmr.2017.187
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.cambridge.org/core/journals/journal-of-materials-research/article/comparing-the-atomic-and-macroscopic-aging-dynamics-in-an-amorphous-and-partially-crystalline-zr44ti11ni10cu10be25-bulk-metallic-glass/C53A0DAB1A6148F666C16632A927CA91
dc.rights.accessOpen Access
local.identifier.drac21144423
dc.description.versionPostprint (author's final draft)
local.citation.authorEvenson, Z.; Payes, A.; Chushkin, Y.; di Michiel, M.; Pineda, E.; Ruta, B.
local.citation.publicationNameJournal of materials research
local.citation.volume32
local.citation.number11
local.citation.startingPage2014
local.citation.endingPage2021


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