Formation and Thermal Behavior of Nanocrystalline Bi2Ti2O7

摘要

Formation of nanocrystalline bismuth titanate Bi2Ti2O7 with pyrochlore structure obtained via thermal decomposition of a co-precipitated product has been studied. The onset of vigorous formation of Bi2Ti2O7 has been shown to correlate with the melting point of the surface phase based on bismuth oxide. The upper temperature limit of the region of nanocrystalline Bi2Ti2O7 stability has been found. Technological parameters of synthesis of Bi2Ti2O7 with average crystallite size of 75-130 nm have been determined.