Ceramics-Silikáty 55 (1) 26-30 (2011)

A NOVEL METHOD FOR SYNTHESIS OF METASTABLE TETRAGONAL ZIRCONIA NANOPOWDERS AT LOW TEMPERATURES

F. Kazemi, A. Saberi, S. Malek-Ahmadi, S. Sohrabi, H.R. Rezaie, M. Tahriri

Zirconia (ZrO₂) nanopowder was synthesized using sucrose and fructose as a chelating agent from zirconium hydroxide. The synthesized powders were characterized by X-ray diffraction (XRD), simultaneously thermal analysis (STA), BET surface area, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The above-experimental results showed that the synthesized powders had particle sizes in the range 40-60 nm and mean crystallite sizes of 7-8 nm. Finally, in this research, chelating agents of sucrose and fructose were compared and the obtained results demonstrated that using fructose, nanopowder of zirconia with tetragonal phase was obtained.

Keywords: ZrO₂, Nanopowders, Precursors-organic, XRD, Crystallite, Electron diffraction