Abstract

Anatase and rutile powders prepared by various methods were characterized by thermoanalytical studies up to 1400 °C using a simultaneous TG-DTG-DTA apparatus. Preparation techniques were developed for the manufacture of amorphous titania, pure anatase, stabilized anatase and pure rutile. Enthalpy effects originating from the crystallization of amorphous parts into the anatase modification and from the phase transition of anatase into rutile were investigated. The latter phase transition was detected by means of heat flux DSC measurements. The transition enthalpy was determined.

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