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We have studied the influence of a new lead-free Fe/Li incorporated H-Bt prepared by the solid state reaction method and compared it with pure hexagonal barium titanate. The hexagonal phase was stabilised at room temperature due to substitution with Fe-Li. Lattice constants were refined as a = 5.720 A.U., c = 13.96 A.U. Both XRD and IR imply that Li enters octahedral as well as Ba sites. Dielectric measurements show an increase from 800 to 105 indicating sample to be potential colossal dielectric constant (CDC) material. Abnormal grain growth (AGG) was restricted in the substituted sample and normal grain growth was observed.

international journal of innovative research in science engineering and technology/international journal of innovative research in science, engineering and technology

Structural and Dielectric Studies of Fe-Li Substituted Hexagonal Barium Titanate