Preparation of YAG Nanoparticles by Sol-Gel Method and its Application in Electrical Contact Materia

• 作 者: GuanBingyu[1]ZhangLingjie[2]YangHui[2]FanXianping[2]QiGengxin[3]ChenXiao[3]
• 机 构: Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, Chi
• 出 处: 2016’中国溶胶-凝胶学术研讨会暨国际论坛
• 发表日期: 2016年期

　　Y(NO3)3·6H2O, Al(NO3)3·9H2O and isopropanol (C3H8O) were used as raw materials to synthesize YAG nanoparticles by sol-gel method while hexamethylenetetramine and citric acid were used as catalysts.Meanwhile, YAG particles were used as the second-phase to prepare Ag/YAG electrical contact composites by powder metallurgy method.Properties and morphologies were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FTIR), hardness tester and conductivity meter.Results show that YAG nanoparticles synthesized by sol-gel method are 50~100nm in size with high purity.The prepared Ag/YAG composites have high electrical conductivity, high mechanical strength and excellent anti-welding performance.