Linking Equilibrium and Nonequilibrium Dynamics in Glass-Forming Systems

John C. Mauro, Xiaoju Guo, Morten Mattrup Smedskjær

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Abstrakt

Understanding nonequilibrium glassy dynamics is of great scientific and technological importance. However, prediction of the temperature, thermal history, and composition dependence of nonequilibrium viscosity is challenging due to the noncrystalline and nonergodic nature of the glassy state. Here, we show that the nonequilibrium glassy dynamics are intimately connected with the equilibrium liquid dynamics. This is accomplished by deriving a new functional form for the thermal history dependence of nonequilibrium viscosity, which is validated against experimental measurements of industrial silicate glasses and computed viscosities for selenium over a wide range of conditions. Since the temperature and composition dependence of liquid viscosity can be predicted using temperature-dependent constraint theory, our work also opens the possibility to improve understanding of the physics of nonequilibrium viscosity.
OriginalsprogEngelsk
Publikationsdato22 maj 2016
StatusUdgivet - 22 maj 2016
BegivenhedGlass & Optical Materials Division Meeting 2016 - The Madison Concourse Hotel and the Governor's Club, Madison, USA
Varighed: 22 jun. 201626 jun. 2016
http://ceramics.org/2016-glass-optical-materials-division-meeting-archive
http://ceramics.org/gomd2016-2

Konference

KonferenceGlass & Optical Materials Division Meeting 2016
LokationThe Madison Concourse Hotel and the Governor's Club
LandUSA
ByMadison
Periode22/06/201626/06/2016
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