FTIR as a Tool to Study High-Temperature Phase Formation in Sol–Gel Aluminium Titanate

A FTIR spectrum is used to study the formation characteristics of aluminium titanate precursor gel under the influence of temperature. From an analysis of the spectra of the gel heated at different temperatures in the 30–1400°C range, it is found that both octahedral and tetrahedral Al–O coordinatio...

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Bibliographic Details
Published inJournal of solid state chemistry Vol. 131; no. 1; pp. 181 - 184
Main Authors Joe, I.Hubert, Vasudevan, Asha K., Aruldhas, G., Damodaran, A.D., Warrier, K.G.K.
Format Journal Article
LanguageEnglish
Published San Diego, CA Elsevier Inc 01.06.1997
Elsevier
Subjects
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Chemistry
Colloidal gels. Colloidal sols
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Structural ceramics
Technical ceramics
Colloidal gel
Infrared spectrometry
Fourier transformation
Phase composition
Sol gel process
Manufacturing
Experimental study
Precursor
Aluminium Titanates
Oxide ceramics
Structural ceramic
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Summary:A FTIR spectrum is used to study the formation characteristics of aluminium titanate precursor gel under the influence of temperature. From an analysis of the spectra of the gel heated at different temperatures in the 30–1400°C range, it is found that both octahedral and tetrahedral Al–O coordinations are present up to 800°C. At temperatures above 800°C, the tetrahedral Al–O coordination decreases and becomes negligible at 1050°C.α-alumina and rutile phases are formed at 1000°C and the aluminium titanate phase is formed at 1300°C. The Al–O coordination in aluminium titanate is found to be octahedral.
ISSN:0022-4596
1095-726X
DOI:10.1006/jssc.1997.7371