Dependence of precursor characteristics on low temperature densification of sol-gel aluminium titanate

Hareesh, U.S.; Vasudevan, A.K.; Warrier, K.G.K.; Berry, F.J.; Mortimer, M. and Vetel, F.F. (2001). Dependence of precursor characteristics on low temperature densification of sol-gel aluminium titanate. Journal of the European Ceramic Society, 21(13) pp. 2345–2351.

DOI: https://doi.org/10.1016/S0955-2219(01)00207-2

Abstract

Aluminium titanate precursor gels have been prepared by the sol-gel route using monohydroxy aluminium oxide (boehmite) sol and titanium isopropoxide. The influence of calcination temperature of the precursors on phase formation, densification and microstructure development in sol-gel aluminium titanate have been studied. Studies of pre-calcined precursor gels at 600, 800, 1000 and 1200 degreesC show a significant increase in density on raising the calcination temperature from 600 to 1000 degreesC. The treatment at 1000 degreesC favours a phase composition most conducive to low temperature densification of aluminium titanate at 1350 degreesC.

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