Modification in properties of barium titanate on Sm³⁺ substitution

ABSTRACT

Effect of substitution of Sm³⁺ on various properties of barium titanate has been studied. Barium titanate (BT) and its Sm³⁺ substituted derivative has been synthesized using solid state reaction method. X-ray diffraction analysis clearly indicated decrease in lattice constant of BT on Sm³⁺ substitution. Grain size increases significantly with the substitution of Sm³⁺. Sm³⁺ substituted BT sample possesses higher dielectric constant and better piezoelectric properties.

KEYWORDS:

• Dielectric
• microstructural
• piezoelectric