Interpretation of the glass transition temperature from the point of view of molecular mobility

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dc.contributor.authorDimitrov, Ventzislav Ivanoven_US
dc.date.accessioned2015-07-14T23:48:26Z
dc.date.available2015-07-14T23:48:26Z
dc.date.issued2005
dc.departmentIşık Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.departmentIşık University, Faculty of Arts and Sciences, Department of Physicsen_US
dc.description.abstractGlass transition has been one of the biggest challenges in condensed matter physics during the last century: in spite of significant progress we still cannot explain the sudden solidification of undercooled liquids on the atomic scale. The liquid state itself is one of the less developed branches of condensed matter physics. The theoretical concepts of atomic mobility, diffusion and viscosity in liquids are not in good agreement with experiments. In the present paper we attempt to answer this challenge by describing the thermal motion of the native molecules of the liquid as Brownian motion. On the basis of this theory we have derived general expressions for the atomic mobility, mu, self-diffusion, D, and viscosity, eta for liquids. In dependence on a reduced temperature t, the mobility is expressed as mu = mu(0)m(t) for t >= 0 and mu = 0 for t <= 0 where mu(0) is the mobility at the jamming point of the liquid, and m(t) is defined by t = m/(1 - e(-m)). The reduced temperature t = gamma T-2/gamma T-2(c)c is determined by a quantity gamma accounting for the anharmonicity of interparticle interactions in the liquid state. At the special values gamma(c) and T-c the mobility becomes zero, i.e. the equilibrium glass transition occurs when the reduced temperature becomes equal to 1.en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationDimitrov, V. I. (2005). Interpretation of the glass transition temperature from the point of view of molecular mobility.Dordrecht: Springer Netherlands 184, 345-352.en_US
dc.identifier.doi10.1007/1-4020-2965-9_31
dc.identifier.endpage352
dc.identifier.isbn1402029632
dc.identifier.startpage345
dc.identifier.urihttps://hdl.handle.net/11729/659
dc.identifier.urihttp://dx.doi.org/10.1007/1-4020-2965-9_31
dc.identifier.volume184
dc.identifier.wosWOS:000229606300031
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakConference Proceedings Citation Index – Science (CPCI-S)en_US
dc.institutionauthorDimitrov, Ventzislav Ivanoven_US
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherSpringeren_US
dc.relation.ispartofProperties and Applications of Nanocrystalline Alloys from Amorphous Precursorsen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAtomic and molecular structure and spectra,en_US
dc.subjectSolid state physics and spectroscopyen_US
dc.subjectCondensed matteren_US
dc.subjectMetallic materialsen_US
dc.subjectPhysicsen_US
dc.subjectNanotechnologyen_US
dc.subjectMagnetismen_US
dc.subjectMagnetic materialsen_US
dc.titleInterpretation of the glass transition temperature from the point of view of molecular mobilityen_US
dc.typeConference Objecten_US
dspace.entity.typePublication

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