Premium
Measurement of Stress‐Optical Coefficient and Rate of Stress Release in Commercial Soda‐Lime Glasses
Author(s) -
ZEE ARTHUR F.,
NORITAKE HENRY M.
Publication year - 1958
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.1151-2916.1958.tb13534.x
Subject(s) - stress (linguistics) , materials science , soda lime , composite material , philosophy , linguistics
A method is described for measuring the stress‐birefringence properties of soda‐lime glasses in the range 23° to 650°C. Data on three glasses show that the stress‐optical coefficient increases slowly with temperature, reaching a definite maximum in the range 570° to 590°C. The same apparatus was used to measure the rate of stress release in two of these glasses. Data obtained under thermal equilibrium conditions can be represented by equations that suggest that two or more concurrent mechanisms are involved in stress release in these glasses within the viscosity range log 12 to log 14.5 (a rapid one of 0.4 to 10 minutes in duration and a slow one of 2 to 60 minutes).