Abstract
Barium titanate precursor gel was successfully obtained by a sol-gel process with the use of barium acetate and titanium isopropoxide as starting materials. The calcination process of the barium titanate gel was characterized by FTIRPAS, TG-DTA, XRD and acid extraction method. These analyses indicate that barium acetate was distributed uuiformly in the gel matrix formed by hydrolysis and polymerization of titanium isopropoxide. The barium titanate was formed rapidly at higher temperatures than 823-873K resulted from the reaction between titanium oxide and barium carbonate or barium oxide.
