Phase Transition Study of the Catecholate Synthesized Barium Titanate Powders

Wongduan Maison [a]; Gobwute Rujijanagul[b]; Tawee Tunkasiri[b]; Sukon Phanichphant[a]

Phase Transition Study of the Catecholate Synthesized Barium Titanate Powders

Wongduan Maison [a], Gobwute Rujijanagul[b], Tawee Tunkasiri[b] And Sukon Phanichphant[a]
* Author for corresponding; e-mail address: -
Volume: Vol.26 No.2 (DECEMBER 1999)
Opinion
DOI:
Received: -, Revised: -, Accepted: -, Published: -

Citation: Maison W., Rujijanagul G. and Phanichphant T.T.A.S., Phase Transition Study of the Catecholate Synthesized Barium Titanate Powders, Chiang Mai Journal of Science, 1999; 26(2): -.

Abstract

Synthesis of high purity barium titanate powders by the catecholate process was performed by reacting catechol as a complexing agent with titanium tetrachloride in toluene to yield titanium complex, H₂[Ti(C₆H₄O₂)₃], which then reacted with suspension of barium carbonate in deionizes water to yield barium titanate catecholate. The complex was isolated in solid form by freeze – drying. Subsequent decomposition to crystalline barium titanate was achieved by heating the freeze – drying complex from 600 ° C to 900 ° C with increment of 100 degrees for 3 hours. The physical and chemical properties of barium titanate were investigated. Phase transition of barium titanate powders was also studied.

Keywords:

Chiang Mai Journal of Science

1,647

Q3 0.80

Q3 1.3

7 days

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