Diffusion structural analysis study of titania films deposited by sol-gel technique on silica glass

0341374 - ÚACH 2010 RIV US eng J - Journal Article
Balek, V. - Mitsuhashi, T. - Bountseva, I.M. - Haneda, H. - Málek, Z. - Šubrt, Jan
Diffusion structural analysis study of titania films deposited by sol-gel technique on silica glass.
Journal of Sol-Gel Science and Technology. Roč. 26, 1-3 (2003), s. 185-189. ISSN 0928-0707. E-ISSN 1573-4846.
[International Workshop on Glasses, Ceramics, Hybrids and Nanocomposites from Gels /11./. Abano Terme, 16.09.2001-21.09.2001]
Institutional research plan: CEZ:AV0Z4032918
Keywords : titania film * diffusion structural analysis * sol-gel
Subject RIV: CA - Inorganic Chemistry
Impact factor: 1.546, year: 2003

The diffusion structural analysis (DSA) was used to characterize microstructure changes of hydrous titania gel films under in situ conditions of heating. TG and DTA were used in order to elucidate the processes controlling the formation of anatase film during heating of hydrous titania gel film. The annealing of porosity and near surface structure defects of the dehydrated titania films was indicated by DSA in the temperature range 255-700degreesC as the decrease of radon release rate. It was demonstrated that the annealing was enhanced on heating in oxygen in comparison with heating in argon. The DSA experimental results were compared with model curves describing the radon diffusion mobility and the annealing of radon diffusion paths.
Permanent Link: http://hdl.handle.net/11104/0184384