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Influence of Externally Applied Stresses on Kinetics of Ion Exchange in Glass
Author(s) -
VARSHNEYA A. K.,
DUMAIS GLENN A.
Publication year - 1985
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.1151-2916.1985.tb10159.x
Subject(s) - penetration (warfare) , ion exchange , diffusion , potassium , soda lime , ion , composite material , materials science , soda lime glass , tension (geology) , mineralogy , chemistry , lime , analytical chemistry (journal) , compression (physics) , thermodynamics , metallurgy , chromatography , physics , organic chemistry , operations research , engineering
Soda‐lime‐silica glass canes were ion‐exchanged in a bent mode in a molten KNO 3 salt bath. After ion exchange and cooling, the specimens showed asymmetry of residual stresses. Measured penetration profiles of potassium showed that the maximum diffusion occurred from the tension side, the minimum from the compression side, with the neutral side being in between. These observations support the notion that externally applied stresses can alter the average site size for cation diffusion in glass.