| Issue |
J. Phys. IV France
Volume 120, December 2004
|
|
|---|---|---|
| Page(s) | 657 - 667 | |
| DOI | https://doi.org/10.1051/jp4:2004120075 | |
J. Phys. IV France 120 (2004) 657-667
DOI: 10.1051/jp4:2004120075
Stresses in glass plate joined with other materials: Modeling and experimental validation
Y.K. StartsevLaboratory of Glass Properties, Institute of Silicate Chemistry of the Russian Academy of Sciences, 199155 St. Petersburg, Russia
Abstract
The previously developed relaxation model for annealing
of glass seals with other materials has been applied widely. It remains
unclear whether there are a specific low temperature and very long-term
iso-thermal treatments at which this simple model ceases to work correctly
and requires complication or even revision. With the aim to determine the
minimum fictive temperature at which the relaxation model of annealing of
glass seal with an elastic material is still applicable, the stresses in the
sandwich S52-2 glass-molybdenum seals are measured at different
stabilization temperatures. The experimental temperature-time dependences of
the stresses are compared with those calculated using the relaxation model
of seal annealing. The use of this relatively simple model leads to a quite
satisfactory agreement (even if not identical at all the temperatures) in
the range from the glass transition temperature to 380
C for stabilization
durations as long as 81 days. This treatment duration makes it possible to
reach a structural temperature of 434C, which is considerably lower than
the structural temperature (525C) obtained upon simple cooling of glass at
a rate of 3 K/mm.
© EDP Sciences 2004