N. A. Lomanova, V. V. Gusarov, “On the limiting thickness of the Perovskite-like block in the Aurivillius phases in the Bi$_2$O$_3$–Fe$_2$O$_3$–TiO$_2$ system”, Nanosystems: Physics, Chemistry, Mathematics, 2011, Volume 2, Issue 3,Pages 93

CHEMISTRY

On the limiting thickness of the Perovskite-like block in the Aurivillius phases in the Bi$_2$O$_3$–Fe$_2$O$_3$–TiO$_2$ system

N. A. Lomanova^a, V. V. Gusarov^ab

^a Ioffe Institute, St. Petersburg
^b State Technological Institute of St. Petersburg (Technical University)

Abstract: The stability of the Aurivillius phases in the system Bi$_2$O$_3$–Fe$_2$O$_3$–TiO$_2$ was investigated. Structural and physicochemical parameters, allowing to calculate the limits of the length of the homologous series of the compounds Bi$_{n+1}$Fe$_{n-3}$Ti$_3$O$_{3n+3}$ were identified. It was found that the maximum thickness of a perovskite-like block of these compounds is $\sim$3.7 nm.

Keywords: oxides; layered compounds; the Aurivillius phases.

UDC: 541.124

PACS: 61.66.Fn