Crystal Research and Technology
Cryst. Res. Technol. 41, 1076 (2006) - Abstract -

Preparation of nanostructured ZrTiO4 by solid state reaction in equimolar mixture of TiO2 and ZrO2

A. Gajovic, I. Djerdj*, K. Furic, R. Schlögl**, and D. S. Su**

Ruder Boskovic Institute, POB 180, HR-10002 Zagreb, Croatia
*Faculty of Science, Department of Physics, POB 331, HR-10002 Zagreb, Croatia
**Abteilung Anorganische Chemie, Fritz Haber Institut der Max Planck Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany

Keywords mechanical milling, high-resolution electron microscopy, x-ray diffraction, in situ high temperature Raman spectroscopy, nanocristalline zirconium titanate
PACS 81.05.Je, 81.07.-b, 81.20.Ev
DOI 10.1002/crat.200610725

A solid state reaction in an equimolar mixture of TiO2 and ZrO2 was achieved by high-energy ball-milling. The ball-milling first induced the transformation of anatase TiO2 to high-pressure phase TiO2 (II). Nanosized ZrTiO4 phase was formed from TiO2(II)/ZrO2 solid solution by prolonging milling. The finishing of the solid state reaction towards ZrTiO4 ceramic is investigated in situ at high temperature (< 1100°C) by RS. Reaction is completed at a temperature much lower than reported in literature (1400 – 1600°C).




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