Lattice parameter variations in mixed oxides with the monoclinic zirconia structure: the systems ZrO2–Fe2O3, ZrO2–SnO2, and ZrO2–Cr2O3

Abstract

The portions of the systems ZrO₂–Fe₂O₃, ZrO₂–SnO₂, and ZrO₂–Cr₂O₃ which have the monoclinic ZrO₂ structure have been investigated by X-ray powder diffraction. The introduction of Fe^III, Sn^IV, and Cr^III into the monoclinic ZrO₂ structure causes the volume of the unit cell to decrease. In each system the solubility limit occurs at a unit cell volume of ca. 140·5 ų.