Studyon Thermal Analysis Behavior of Nanocrystalline Brookite TiO2

Abstract

Abstract: Using DTA measurement on nanocrystalline brookite TiO₂ sample, we found two endothermic peaks on DTA curve. From XRD analysis of the original nanocrystalline TiO₂ and its heat-treating samples, we obtained the following results: the irst
endothermic peak (peak A) corresponds to the desorption of physical or chemical absorption; the second one (peak B) is elated to the first order phase transition from brookite to anatase then to rutile, and this structural phase transition is neficial
to the growth of nanocrystallilne grains.

Key words: nanocrystalline TiO₂, DTA, XRD, first order phase transition

YE Xisheng,SHA Jian,JIAO Zhengkuan,PENG Zifei,ZHANG Lide. Studyon Thermal Analysis Behavior of Nanocrystalline Brookite TiO₂[J]. Journal of Inorganic Materials.

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Studyon Thermal Analysis Behavior of Nanocrystalline Brookite TiO₂

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