Premium
Temperature Dependence of the High‐Frequency Viscoelastic Behavior of a Soda‐Lime‐Silica Glass
Author(s) -
Duffrène Lucas,
Gy René,
Masnik John E.,
Kieffer John,
Bass Jay D.
Publication year - 1998
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1998.tb02479.x
Subject(s) - viscoelasticity , relaxation (psychology) , materials science , brillouin scattering , glass transition , tempering , annealing (glass) , atmospheric temperature range , thermodynamics , aerogel , silica glass , soda lime , elasticity (physics) , composite material , mineralogy , optics , chemistry , polymer , physics , psychology , social psychology , optical fiber
The high‐frequency viscoelastic behavior of a soda‐lime‐silica glass has been investigated using the Brillouin scattering technique. The temperature dependence of instantaneous elastic constants and very short‐time relaxation mechanisms have been measured in a temperature range between 100° and 1000°C. Variations in the elastic constants in the transition region are significant, and have to be taken into account for numerical computations of tempering and annealing of glasses. A complex thermorheological behavior is observed for very fast relaxation mechanisms in the transition range, whereas intermediate and slow relaxation mechanisms exhibit a simple thermorheological behavior. The viscoelastic behavior of this glass can be adequately represented by assuming a different thermorheological behavior in the alpha‐ and β‐relaxation regimes.