Synchrotron Radiation Investigation of Thermal Stability and Grain-Growth in Pure and Metal-Doped Nanocrystalline TiO2

Abstract:

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The crystallization and coarsening of pure and metal-doped (M: Ag, Fe, Co) TiO2 amorphous specimens were studied during in-situ synchrotron radiation diffraction experiments. The temperature and time dependence of the average grain-size of TiO2 anatase and rutile constituent phases was determined. Excess vacancies, secondary phases or solute elements cause the pinning of the grain-boundary motion, control the onset of the anataserutile transition and control the thermal stability of ultrafine microstructures in nanocrystalline TiO2 ceramics.

Info:

Periodical:

Materials Science Forum (Volumes 467-470)

Edited by:

B. Bacroix, J.H. Driver, R. Le Gall, Cl. Maurice, R. Penelle, H. Réglé and L. Tabourot

Pages:

1307-1312

DOI:

10.4028/www.scientific.net/MSF.467-470.1307

Citation:

R. Nicula et al., "Synchrotron Radiation Investigation of Thermal Stability and Grain-Growth in Pure and Metal-Doped Nanocrystalline TiO2", Materials Science Forum, Vols. 467-470, pp. 1307-1312, 2004

Online since:

October 2004

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$35.00

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