On the frequency correction in temperature-modulated differential scanning calorimetry of the glass transition

Xiaoju Guo, John C. Mauro, Douglas C. Allan, Yuanzheng Yue

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Temperature-modulated differential scanning calorimetry (TMDSC) is based on conventional DSC but with a sinusoidally modulated temperature path. Simulations of TMDSC signals were performed for Corning EAGLE XG glass over a wide range of modulation frequencies. Our results reveal that the frequency correction commonly used in the interpretation of TMDSC signals leads to a master nonreversing heat flow curve independent of modulation frequency, provided that sufficiently high frequencies are employed in the TMDSC measurement. A master reversing heat flow curve can also be generated through the frequency correction. The resulting glass transition temperature from the frequency corrected reversing heat flow is thereby shown to be independent of frequency.

Original languageEnglish (US)
Pages (from-to)1710-1715
Number of pages6
JournalJournal of Non-Crystalline Solids
Volume358
Issue number14
DOIs
StatePublished - Jul 15 2012

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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