Premium
Stresses in ion‐exchange layers of soda‐lime‐silicate glass
Author(s) -
FETT T.,
GUIN J. P.,
WIEDERHORN S. M.
Publication year - 2005
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.2005.00888.x
Subject(s) - hydronium , soda lime , ion exchange , materials science , ion , sodium silicate , soda lime glass , lime , composite material , silicate , silicate glass , stress (linguistics) , surface stress , mineralogy , metallurgy , analytical chemistry (journal) , chemistry , chromatography , linguistics , philosophy , organic chemistry , surface energy
This paper presents a new method to determine both the magnitude and the sign of the surface stresses that develop as a consequence of sodium/hydrogen ion exchange in soda‐lime‐silicate glass immersed in water. At 90 °C, very thin layers that develop at the surfaces of polished glass specimens are found to have extremely high compressive stresses, −2.4 GPa. The negative sign of the stress is consistent with earlier findings that the ion‐exchange process involves hydronium ions (H 3 O + ) and not bare protons (H + ).