The sol-gel synthesis of barium strontium titanate ceramics

The sol-gel derived powders of the chemical composition (Ba0.6Sr0.4)TiO3 (BST) were used in the preparation of ceramic samples. Barium acetate, strontium acetate and tetra-butyl titanate were used as starting materials. The free sintering method was used for the final densification of ceramics. The ceramic samples were characterized in terms of their crystalline structure (X-ray diffraction), microstructure (scanning electron microscopy), chemical composition (energy dispersive spectroscopy), and dielectric properties.