首页|Synthesis of Nano-sized Barium Titanate Powder by Rotary-hydrothermal Process
Synthesis of Nano-sized Barium Titanate Powder by Rotary-hydrothermal Process
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NETL
NSTL
Trans Tech Publications Ltd
Nano-sized BaTiO_3 powders with narrow size distribution and the high tetragonality were attempted to synthesize by the rotary-hydrothermal process in water system, using two kinds of commercial anatase-type TiO_2 (ST21/ST01) with different particle size and Ba(OH)_2. The rotary-hydrothermal syntheses were done with the rotary-speed of 20 revolutions per minute at 523 K for 24 h. Highly-and mono-dispersed BaTiO_3 powders were successfully synthesized by applying the rotary-hydrothermal process. For rotary-hydrothermal synthesis, it was found that the average size, tetragonality, and quality of the BaTiO_3 particle strongly depended on the particle size of the starting material. In the case of using ST01 as a starting material, BaTiO_3 nano-powders mainly composed of coarse-faceted particles (average particle size = ca. 100 nm) with the tetragonal phase and very little lattice defects were successfully synthesized.
Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuencho, Nakaku, Sakai City, Osaka, 599-8531, Japan
Corporate Components Development Center, Panasonic Electronic Devices Co. Ltd., 1006 Kadoma, Kadoma City, Osaka, 571-8506, Japan
NETL
NSTL
Trans Tech Publications Ltd
