Time-temperature superposition in viscous liquids

Abstract

Dielectric relaxation measurements on supercooled triphenyl phosphite show that at low temperatures time-temperature superposition (TTS) is accurately obeyed for the primary (alpha) relaxation process. Measurements on 6 other molecular liquids close to the calorimetric glass transition indicate that TTS is linked to an ${\omega }^{-1/2}$ high-frequency decay of the alpha loss, while the loss peak width is nonuniversal.

4 pages

References in corpus (2)

• The Excess Wing in the Dielectric Loss of Glass-Formers: A Johari-Goldstein beta-Relaxation?
• Beta-relaxation of non-polymeric liquids close to the glass transition

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