Abstract
Two different specific surface area of starting BaCO3, 10 and 30 m2/g, are used to prepare solid-state BaTiO3 powder. Pure tetragonal BaTiO3 was obtained at a lower calcination temperature with smaller BaCO3, and the kinetic calculations of activation energy also agree with it. A clear, thin, and nano-sized cubic BaTiO3 clusters on TiO2 particles were also observed. A narrower particle size distribution of BaTiO3 powder (350 nm) was obtained from 30 m2/g of starting BaCO3 at 1000°C. After sintering with reducing atmosphere, the ceramics with potential of X8R or X7R specifications and a clear core–shell microstructure were obtained in this study.
Original language | English |
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Pages (from-to) | E134-E144 |
Journal | International Journal of Applied Ceramic Technology |
Volume | 10 |
DOIs | |
Publication status | Published - 2013 Sept 1 |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Condensed Matter Physics
- Marketing
- Materials Chemistry