Sintering temperature influence on phase stability in barium titanate ceramics with very small grain size
- 1 March 1992
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 127 (1), 59-64
- https://doi.org/10.1080/00150199208223347
Abstract
Starting from a barium titanate powder of 0.07 μm grain size and a coherently diffracting domain size of 0.017 μm, several pellets were prepared and later sintered at different temperatures. Dielectric constant measurements have shown that between - 150 and 175 °C the green sample stable phase is cubic. The tetragonal-cubic and rhombohedral-orthorhombic transitions appear when the sample is sintered at 700 and 900°C respectively. A non-equilibrium anomaly has been found at °C when cooling and at 35°C when heating the green sample at a low rate.Keywords
This publication has 4 references indexed in Scilit:
- Application of the constant rate thermal analysis technique to the microstructure control of BaTiO3yielded from coprecipitated oxalateFerroelectrics, 1991
- Correlation between the shape of controlled-rate thermal analysis curves and the kinetics of solid-state reactionsThermochimica Acta, 1990
- Dependence of the Crystal Structure on Particle Size in Barium TitanateJournal of the American Ceramic Society, 1989
- Dielectric properties of fine-grained barium titanate ceramicsJournal of Applied Physics, 1985