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ETUDE DES PROPRIETESPHYSICO-CHIMIQUES DES OXYDES DETITANE OBTENUS PAR VOIE SOL-GEL

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Abderrazak HAMAM, 2012, «ETUDE DES PROPRIETES PHYSICO-CHIMIQUES DES OXYDES DE TITANE OBTENUS PAR VOIE SOL-GEL», Mémoire de magister, Université 8 mai 1945 de Guelma

ETUDE DES PROPRIETES

PHYSICO-CHIMIQUES DES OXYDES DE TITANE OBTENUS PAR VOIE SOL-GEL

Abderrazak HAMAM

Soutenue en: 2012

Abstract : In this work, simple and composite xerogels based alcoxydes of titanium and silicon to knowing the titanium tetraisopropoxide Ti[OCH(CH3)2]4 , tetramethoxysilane Si(CH3)4 : were prepared by sol-gel processing. The solutions were prepared in acid, basic and neutral mediums. The gelation of these solutions whereas it varies between 5 hours and 9 days for the simple xerogels whiles it varies between 3-9 days for the composite xerogels. The gel obtained was dried at ambient temperature.

The microstructural evolution of the simple and composite xerogels was followed by the differential thermal analysis (DTA), thermogravimetrie (TG) and by Fourier transforms infrared spectroscopy (FTIR).

Keywords : : Sol-Gel, Xerogels, titanium, composite, thermal analysis, FTIR

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