X-ray diffraction studies of phase transformations between tetragonal and cubic phases in the BaSnxTi1-xO3 system

Abstract

X-ray powder diffraction has been used to investigate the cubic–tetragonal phase transformation and lattice constant in a BaSnxTi1−xO3 system (x=0.0–0.2) at room temperature. The existing regions of tetragonal phase were strongly influenced by the amounts of tin (from x=0.0–0.1). The mass fraction of the tetragonal phase decreases as substitution of tin for titanium increases until x=0.1, while the mass fraction of the cubic phase increases simultaneously. The lattice constant of cubic phase and the cube roots of the unit-cell volumes of tetragonal phases indicate linear relations with the amounts of tin. © 1998 Chapman & Hall