Structural and anisotropic thermal expansion correlation of Li<inf>2</inf>ZrO<inf>3</inf> at different temperatures

Abstract

Structural and thermal expansion studies of Li2ZrO3 were carried out by recording X-ray powder diffraction patterns at five temperatures, 82, 198, 300, 423 and 573 K. The Rietveld refinement method was used for the analysis. There were large anisotropic changes in the lattice parameters as a function of temperature, slight changes in the fractional coordinates of the different atoms, and anisotropic changes in the interatomic distances between the different cations. The correlation of these anisotropies with the structure is considered. © 2002 International Union of Crystallography Printed in Great Britain - all rights reserved.