Preparation of Bi₄Ti₃O₁₂ powder and ceramics by molten salt methods

Plated-like Bi₄Ti₃O₁₂ powder with anisotropy is prepared by NaCl-KCl molten salt method, the effect of salt quantities on microstructure and dielectric properties of BiiTiaOia ceramics is investigated. The results show that the Bi₄Ti₃O₁₂ particle size and the degree of anisotropy increase with the increasing molten salt quantities. The textured Bi₄Ti₃O₁₂ ceramics with plated-like grain were prepared by sintered at 11007deg;C. The insulation resistivity and dielectric constant of Bi₄Ti₃O₁₂ ceramics increase and dielectric loss decreases with increasing molten salt quantities.