以Y(NO3)3.6H2O、Al(NO3)3.9H2O和柠檬酸为原料,分别以去离子水和无水乙醇为溶剂,采用溶胶-凝胶燃烧法合成YAG粉体。借助FT-IR、XRD、SEM等分析仪器研究了溶胶-凝胶燃烧法合成YAG粉体的过程,重点讨论了前躯体溶液不同溶剂对溶胶-凝胶燃烧法合成过程及合成产物的影响。结果表明:去离子水和无水乙醇对合成的YAG粉体的形貌和分散性有重要的影响。 YAG powder was synthesized by sol - gel combustion method using deionized water and ethanol as solvent, respectively, using Y (NO3) 3.6H2O, Al (NO3) 3.9H2O and citric acid as raw materials. The synthesis of YAG powders by sol-gel combustion was studied by means of FT-IR, XRD, SEM and other analytical instruments. The effects of different solvents of precursor solution on the synthesis process and synthesis of sol-gel combustion were discussed. The results showed that the deionized water and ethanol had an important influence on the morphology and dispersion of the synthesized YAG powders.