The shift of the peak of the structural band near similar to 1050 cm(-
1) was monitored during K+ for Na+ ion-exchange of a soda-lime silicat
e glass. The IR reflection analysis probes the specimen surface and th
e shift of the peak can be caused by a change of the surface fictive t
emperature, surface stress, and composition change due to an ion-excha
nge treatment. The peak shift due to the fictive temperature change wa
s determined by IR reflection measurements of samples heat-treated at
various temperatures and the shift due to the composition change was d
etermined by preparing a glass sample with alkali ions completely repl
aced. The shift observed during ion-exchange was much larger than the
shift due to the fictive temperature change or composition change indi
cating that the observed peak shift is due mainly to the stress. In ad
dition, an IR reflection band at similar to 950 cm(-1) due to non-brid
ging oxygen developed as a consequence of ion-exchange in a nitrate li
quid. (C) 1997 Elsevier Science B.V.