Communication: Resolving the vibrational and configurational contributions to thermal expansion in isobaric glass-forming systems

Marcel Potuzak, John C. Mauro, T. J. Kiczenski, Adam J. Ellison, Douglas C. Allan

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

A fundamental understanding of isobaric thermal expansion behavior is critical in all areas of glass science and technology. Current models of glass transition and relaxation behavior implicitly assume that the thermal expansion coefficient of glass-forming systems can be expressed as a sum of vibrational and configurational contributions. However, this assumption is made without rigorous theoretical or experimental justification. Here we present a detailed statistical mechanical analysis resolving the vibrational and configurational contributions to isobaric thermal expansion and show experimental proof of the separability of thermal expansion into vibrational and configurational components for Corning Jade® glass.

Original languageEnglish (US)
Article number091102
JournalJournal of Chemical Physics
Volume133
Issue number9
DOIs
StatePublished - Sep 7 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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