Characterization of perovskite-type GdFeO3 powders prepared by amorphous citrate process

The purposes of this study were to obtain GdFeO 3 powders by calcining their precursor gels which were prepared from Gd 2 O 3 and Fe 2 O 3 by the amorphous citrate process, and to characterize the powders in comparison with those prepared by the solid-state reaction (SSR) of Gd 2 O 3 and Fe 2 O 3 powders. Furthermore, it was attempted to estimate precisely crystallite sizes and lattice constants of GdFeO 3 powders by x-ray diffraction line profile analyses