High purity tetragonal BaTiO3 powders were synthesized by a composite-hydroxide-mediated approach at low temperature using a novel hydrothermal reaction apparatus with a rolling system. The optimum synthesis conditions were explored, and the obtained samples were characterized by their XRD, TEM, TG-DTA and SEM. The powders with an average size of 150 nm in diameter were sintered to almost full theoretical density (ca. 99%) at 1200 °C for 5 h and the obtained ceramics presented a high dielectric constant (9500 at the Curie temperature).
|Number of pages||6|
|Journal||Journal of the European Ceramic Society|
|Publication status||Published - 2010 Feb|
- Dielectric properties
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry