Tm,Ho:Gd3Ga5O12粉体合成并制备陶瓷性能表征  

Tm,Ho:GGG powder synthesis and preparation of ceramic properties

作　　者：张学建[1] 夏晨阳 张守丰 刘卉昇 ZHANG Xue-jian;XIA Chen-yang;ZHANG Shou-feng;LIU Hui-sheng(Jilin Jianzhu university,Changchun130118,China)

机构地区：[1]吉林建筑大学

出　　处：《吉林建筑大学学报》2019年第4期41-44,共4页Journal of Jilin Jianzhu University

摘　　要：采用溶胶-凝胶法合成了Tm,Ho:Gd 3Ga 5O 12(Tm,Ho:GGG)超细纳米粉末,煅烧纳米粉末以用来烧结透明陶瓷.对纳米粉末进行模塑,煅烧和烧结,并通过真空烧结法制备GGG透明陶瓷同时确定陶瓷烧结方法.通过X射线衍射仪(XRD)、傅立叶变换红外(FT-IR)光谱仪、扫描电子显微镜(SEM)和光致发光荧光光谱仪(PFS)分析样品的粒度和结构.分析结果表明,粉末在900℃煅烧下粒度均匀且分散性好.荧光光谱测试结果表明,Tm,Ho:GGG陶瓷主要发射峰位于2.02μm(即2 020 nm),该荧光是由Ho 3+的5I 7→5I 8转变产生的荧光发射.透过光谱测试结果表明,烧结后的Tm,Ho:GGG陶瓷样品透过率约为85.8%.Tm,Ho:Gd 3Ga 5O 12(Tm,Ho:GGG)ultrafine nanopowders were synthesized by sol-gel method,and the nanopowder was calcined to sinter transparent ceramics.The nanopowder is molded,calcined and sintered,and a GGG transparent ceramic is prepared by a vacuum sintering method while determining a ceramic sintering method.The particle size and structure of the samples were analyzed by X ray diffractometer(XRD),Fourier transform infrared(FT-IR)spectrometer,scanning electron microscope(SEM)and photoluminescence fluorescence spectromete(PFS).The analysis results show that the powder has uniform particle size and good dispersion under calcination at 900℃.Fluorescence spectroscopy results show that the main emission peak of Tm,Ho:GGG ceramic is located at 2.02μm,and the fluorescence is the fluorescence emission generated by the transition of 5I 7→5I 8 of Ho 3+.The results of the spectral test showed that the transmittance of the Tm,Ho:GGG ceramic samples after sintering was about 85.8%.

关 键 词：铥(Tm) 钬(Ho) 钆镓石榴石(GGG) 溶胶-凝胶法 透明陶瓷 

分 类 号：TQ174.4[化学工程—陶瓷工业]