In order to develop useful lead-free ferroelectric materials based on BaTiO 3 , Ba1-x Lax Ti1-x Crx O 3 ceramics were synthesized and their dielectric properties were studied. The crystal structure of Ba1-x Lax Ti 1-x Crx O3 changes in the sequence of tetragonal, cubic, rhombohedral and orthorhombic as x increases. Curie temperature T C decreases largely as x increases. The samples except for x = 0.003 show broad peak of high dielectric constant with small dielectric loss. The frequency dispersion like in relaxors is observed below room temperature with x = 0.08.
- Complex perovskite
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics