Homogeneous coprecipitation of precursor for preparation of yttrium aluminum garnet

Pure yttrium aluminium garnet powders were prepared by homogeneous coprecipitation of the precursor. Urea was added to an aeqeous solution of yttrium sulphate and aluminium sulphate. Heating between 80 - 100 °C leads to a precipitate, conststing of ultra fine microspheres . After washing, drying and heating yttrium aluminium garnet powder was obtained