Heat capacity and entropy at the glass transition

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

Frequency resolved non-linear dielectric relaxation experiments at high electric fields are used to conduct a 'reversed' heat capacity experiment, where the energy is absorbed by the configurational modes and only eventually transferred as heat to the phonon bath. The understanding of the nanoscopic energy-flow is quantitative and allows us to extract the configurational contribution to heat capacity and entropy near the glass transition of these supercooled liquids. It is found that the excess heat capacity is largely configurational only for liquids that are not fragile in terms of the strong-fragile pattern.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages1297-1299
Number of pages3
Volume1027
DOIs
StatePublished - 2008
Event15th International Congress on Rheology - Monterey, CA, United States
Duration: Aug 3 2008Aug 8 2008

Other

Other15th International Congress on Rheology
CountryUnited States
CityMonterey, CA
Period8/3/088/8/08

Fingerprint

specific heat
entropy
glass
liquids
baths
heat
electric fields
energy

Keywords

  • configurational entropy
  • glass transition
  • Heat capacity
  • non-linear dielectric effects

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Richert, R. (2008). Heat capacity and entropy at the glass transition. In AIP Conference Proceedings (Vol. 1027, pp. 1297-1299) https://doi.org/10.1063/1.2964549

Heat capacity and entropy at the glass transition. / Richert, Ranko.

AIP Conference Proceedings. Vol. 1027 2008. p. 1297-1299.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Richert, R 2008, Heat capacity and entropy at the glass transition. in AIP Conference Proceedings. vol. 1027, pp. 1297-1299, 15th International Congress on Rheology, Monterey, CA, United States, 8/3/08. https://doi.org/10.1063/1.2964549
Richert R. Heat capacity and entropy at the glass transition. In AIP Conference Proceedings. Vol. 1027. 2008. p. 1297-1299 https://doi.org/10.1063/1.2964549
Richert, Ranko. / Heat capacity and entropy at the glass transition. AIP Conference Proceedings. Vol. 1027 2008. pp. 1297-1299
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