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Effect of gas environment on titania films microstructure characterized by emanation thermal analysis
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SYSNO ASEP 0163378 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Effect of gas environment on titania films microstructure characterized by emanation thermal analysis Author(s) Balek, V. (CZ)
Mitsuhashi, T. (JP)
Boutseva, I. M. (RU)
Beckman, N. (CZ)
Málek, Z. (CZ)
Šubrt, Jan (UACH-T) SAI, RIDSource Title Journal of Thermal Analysis and Calorimetry - ISSN 1418-2874
Roč. 69, č. 1 (2002), s. 93-101Number of pages 9 s. Language eng - English Country HU - Hungary Keywords emanation thermal analysis ; sol-gel ; structure defects annealing Subject RIV CA - Inorganic Chemistry R&D Projects LN00A028 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z4032918 - UACH-T Annotation Emanation thermal analysis (ETA), based on the measurement of the release of radon previously incorporated into the sample, was used to characterize the differences in the thermal behavior porous titania film (thickness 200 nm),when heated in argon and in oxygen, respectively, in the range from 20 to 800degreesC. It was observed that the annealing of porosity and structure defects in the near surface layers of the porous titania film (anatase) was enhanced on heating in oxygen in comparison to the heating in argon. ETA results were compared with SEM micrographs and XRD patterns of the titania film samples heated to 500 and 800degreesC, respectively. A mathematical model was used for the evaluation of the temperature dependence of the titania films microstructure development. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2003
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