Preparation and Characterization of Highly-Dispersed and Highly-Crystalline Barium Titanate Nanoparticles

Abstract:

Highly dispersed barium titanate (BaTiO₃, BT) nanoparticles were prepared by the new 2-step thermal decomposition method of barium titanyl oxalate of 30 nm in size. The nanoparticles were heated at 450 °C for 5 hours in air to yield intermediate product: Ba₂Ti₂O₅CO₃. Highly dispersed BaTiO₃ nanoparticles were prepared by rotationally stirring it at the reduced pressure of 0.2 Pa at various temperatures between 800 °C and 900 °C. The particle size and morphology of the BaTiO₃ nanoparticles were investigated by X-ray diffraction and scanning electron microscopy. These measurements showed that the BT nanoparticles were highly dispersed and well-crystallized.

• Periodical: Key Engineering Materials (Volume 566)
• Pages: 273-276
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.566.273
• Online since: July 2013
• Authors: Tatsuya Kita, Takahiro Takei, Nobuhiro Kumada, Kouichi Nakashima, Ichiro Fujii, Chikako Moriyoshi, Yoshihiro Kuroiwa, Satoshi Wada
• Keywords: Barium Titanate (BT), Dispersion, Ferroelectric, Nanoparticle

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