Temperature-modulated differential scanning calorimetry analysis of high-temperature silicate glasses
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Temperature-modulated differential scanning calorimetry analysis of high-temperature silicate glasses

  • Author(s): Bechgaard, Tobias K
  • Gulbiten, Ozgur
  • Mauro, John C
  • Hu, Yushu
  • Bauchy, Mathieu
  • Smedskjaer, Morten M
  • et al.
Abstract

Differential scanning calorimetry (DSC) is one of the most versatile probes for silicate glasses, allowing determination of, e.g., transition temperatures (glass, crystallization, melting) and the temperature dependence of heat capacity. However, complications arise for glasses featuring overlapping transitions and low sensitivity, e.g., arising from SiO2-rich compositions with small change in heat capacity during glass transition or the low sensitivity of thermocouples at high temperature. These challenges might be overcome using temperature-modulated DSC (TM-DSC), which enables separation of overlapping signals and improved sensitivity at the expense of increased measurement duration.

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