Transactions of the INDIAN CERAMIC SOCIETY Vol. 59 2000
FTIR Study of High Temperature Phase Formation
In Sol-Gel Aluminium Titanate
I. HuBERT JoE, AsHA K. VASUDEYAN, G. ARULDHAS, A. D. DAMODARAN AND K. G. K. WARRIER Pages : 22-24 DOI : 10.1080/0371750X.2000.10799895
Abstract
Fourier Transform Infrared Spectroscopic (FTIR) investigation
has been carried out to study the structural changes and coordination
of AI and Ti in the sol-gel derived aluminium titanate
system as a function of temperature (65°-l400°C). An analysis
of the FTIR spectral patterns shows that both octahedral as well
as tetrahedral coordinations are present up to 800°C. At 1100°C,
octahedral coordination is more predominant due to the formation
of ex-alumina. At 1300°C and above, the coordination is
purely octahedral due to the formation of aluminium titanate.
