Formation and thermal properties of nanocrystalline Bi 4 Ti 3 O 12

Mechanism by which nanocrystalline Bi4Ti3O12 is formed in thermal treatment of coprecipitated hydroxides was studied. It was shown that the onset of the active formation is correlated with the melting point of the surface phase based on bismuth oxide. The technological synthesis parameters of Bi4Ti3O12, at which crystallite sizes in the range 35–60 nm are provided, were determined.