Abstract
LaAlO 3 ceramic powders were synthesized using a polymeric precursor derived from a mixed-metal ethylenediaminetetraacetic acid (EDTA)/ethylene glycol solution. The precursors and derived oxide powders were characterized by differential thermal analysis, thermogravimetric analysis, infrared spectroscopy, X-ray diffraction and transmission electron microscopy. LaAlO 3 was found to crystallize directly from an amorphous precursor at 750 °C for 2 h in air, without intermediate phase formation.
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