Synthesis and characterization of YAG precursor powder in the hydroxyhydrogel form

Powder precursor in the form of hydroxyhydrogel was prepared from yttrium nitrate and aluminium. nitrate, using ammonium hydroxide as precipitant by flash polycondensation technique. Precursor powder obtained in the hydroxyhydrogel form was characterized by TG/DTA, FTIR, SEM and XRD analysis. This method produced material which could be transformed into YAG at comparatively lower temperature (800 degrees C) and was phase pure. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved