Development of New Preparation Method for nm-Sized Barium Titanate Particles

Abstract:

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A new method for ultrafine barium titanate (BaTiO3) particles with diameters of around 5 nm is proposed. In this method, barium titanyl oxalate aqua solution with low concentration below 10-3 mol/l was used as the starting material. The droplets with a size below 3 μm were atomized with an ultrasonic vibrator, dried and thermally decomposed at higher temperatures over 300°C. In the preparation of the BaTiO3 particles, there were two parameters such as thermal decomposition temperature and precursor solution concentration. Therefore, various particles were prepared by changing these parameters. Finally, non-aggregated nm-sized BaTiO3 particles with an average diameter of 5.2 nm, despite wide size distribution from 2 to 20 nm, were prepared by using the precursor solution with 10-6 mol/l.

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Periodical:

Edited by:

Masaru Miyayama, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki

Pages:

215-218

DOI:

10.4028/www.scientific.net/KEM.301.215

Citation:

M. Nishiyama et al., "Development of New Preparation Method for nm-Sized Barium Titanate Particles", Key Engineering Materials, Vol. 301, pp. 215-218, 2006

Online since:

January 2006

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Price:

$35.00

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