Raman spectroscopy studies of structural changes in hydrated titanium and tin dioxide gels under drying

Raman spectroscopy is used in this work to reveal an increase in the size of anatase crystallites in the process of drying of hydrated titanium dioxide gel and ordering of the structure of primary particles of hydrated tin dioxide gel under drying. Raman spectra are interpreted with account of dimensional effects. It is found that mechanical stresses that arise in the materials under drying have a great effect on the structural changes found there. TERMOXIDE Research and Production Company, 624051 Zarechnyi, Sverdlovsk Region, P/O Box 94, Russia. Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 64, No. 2, pp. 266–268, March–April, 1997.