Development of New Preparation Method for nm-Sized Barium Titanate Particles
| Periodical | Key Engineering Materials (Volume 301) |
|---|---|
| Main Theme | Electroceramics in Japan VIII |
| Edited by | Masaru Miyayama, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki |
| Pages | 215-218 |
| DOI | 10.4028/www.scientific.net/KEM.301.215 |
| Citation | Michiyasu Nishiyama et al., 2006, Key Engineering Materials, 301, 215 |
| Online since | January, 2006 |
| Authors | Michiyasu Nishiyama, Takuya Hoshina, Hirofumi Kakemoto, Takaaki Tsurumi, Satoshi Wada |
| Keywords | Barium Titanate, Barium Titanyl Oxalate, Mist Decomposition Method, nm-Sized Particles |
| Price | US$ 28,- |
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.
