Thermal decomposition of barium titanate precursor prepared by a wet chemical method

Katsuyasu Sugawara*, Hiromi Sakusabe, Tomomichi Nishino, Takuo Sugawara, Ko jiro Ogiwara, Joshua S. Dranoff

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


As a part of fundamental study on the kinetics of electroceramics processing by wet chemical methods, barium titanate precursor gel was prepared using barium acetate and titanium tetra-isopropapoxide as starting materials. Experimental results indicated that barium acetate was distributed uniformly in the gel matrix formed by hydrolysis and polymerization of titanium tetra-isopropoxide. In the subsequent calcination of the gel, rapid formation of barium titanate was observed above 823 K which resulted from the reaction between titania and barium carbonate or barium oxide(s). The dynamics of barium titanate formation under different heat-up programs was successfully simulated based on a proposed reaction model that incorporates a specified reactive portion of barium acetate in the gel matrix.

Original languageEnglish (US)
Pages (from-to)2837-2843
Number of pages7
JournalAIChE Journal
Issue number11 A
StatePublished - 1997

ASJC Scopus subject areas

  • Biotechnology
  • Environmental Engineering
  • Chemical Engineering(all)


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