Fabrication plate-like BaBi4Ti4O15 single-crystalline particles by the molten salt synthesis method.

Plate-like single-crystalline BaBi₄Ti₄ O 1 5 particles were synthesized by the molten salt synthesis (MSS) method. The effects of sintering temperature, holding time, and NaCl–KCl molten salt content on the phase structure and morphology of plate-like BaBi₄-Ti₄ O 1 5 particles were investigated. The results show that plate-like BaBi₄Ti₄ O 1 5 particles can be synthesized when the sintering temperature is above 800 ∘ C. The size of particles increases with increasing sintering temperature and molten salt content. Largely anisotropic plate-like BaBi₄Ti₄ O 1 5 particles with diameter ≥ 10 μ m and thickness of ∼ 0.3 μ m can be obtained under the optimum process parameters. The crystal structure of BaBi₄Ti₄ O 1 5 was determined as A2₁am by TEM, which should be attributed to the Bi 3 + and Ba 2 + diffusing into [TiO₆] octahedrons. [ABSTRACT FROM AUTHOR]