Linking Equilibrium and Nonequilibrium Dynamics in Glass-Forming Systems

Xiaoju Guo, Morten M. Smedskjaer, John C. Mauro

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)3226-3231
Number of pages6
JournalJournal of Physical Chemistry B
Volume120
Issue number12
DOIs
StatePublished - Mar 31 2016

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All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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