The Structural and Dielectric Properties of Bi3−xNdxTi1.5W0.5O9 (x = 0.25, 0.5, 0.75, 1.0)

A new series of layered perovskite-like oxides Bi3−xNdxTi1.5W0.5O9 (x = 0.25, 0.5, 0.75, 1.0) was synthesized by the method high-temperature solid-state reaction, in which partial substitution bismuth (Bi) atoms dodecahedra perovskite layer (A-positions) Nd takes place. X-ray structural studies have shown that all compounds are single-phase and structure Aurivillius phases (APs), with close parameters orthorhombic unit cells corresponding to space group A21am. The dependences relative permittivity ε/ε0 tangent loss tgσ at different frequencies on temperature were measured. piezoelectric constant d33 measured for 0.75) series.