Synthesis of cubic yttrium aluminum garnet (YAG) powders by co-precipitation and two-step calcinations

YAG powders were synthesized by co-precipitation and two-step moderate calcinations at 600/800 °C or 600/900 °C in air, respectively. Two kinds of the synthesized powders both possess pure cubic YAG phases without any secondary phases such as YAH, YAP and YAM, etc.. The former has low agglomeration with nano-sized primary particles and large active energy, and the latter has homogeneously dispersed and well-crystallized particles, with a narrow particle size distribution of 8 - 13 µm.