Article ID Journal Published Year Pages File Type
1532053 Materials Science and Engineering: B 2006 4 Pages PDF
Abstract

Yttrium aluminum garnet was synthesized via ethylenediaminetetraacetic acid (EDTA) precursor route. The precursors and the derived oxide powders were characterized by differential scanning calorimetry, thermogravimetric analysis, X-ray diffraction and scanning electron microscopy. The effect of the molar ratio of EDTA to total metal cation concentration (EDTA/M) on the crystallization behavior of YAG was investigated. For the EDTA/M = 1 precursors, YAG was found to crystallize from an amorphous precursor beginning at temperatures of 800 °C within 2 h in air and completely transformed into YAG at 950 °C; a certain amount of hexagonal-YAlO3 co-existed with the YAG phase between 800 and 900 °C. For the EDTA/M = 0.5 precursors, the phase-pure YAG was obtained at 1000 °C for 2 h.

Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
Authors
, , , , ,