改进的溶胶-凝胶法制备Nd∶YAG纳米粉体及透明陶瓷  

Preparation of Nd∶YAG nanopowders by a modified sol-gel method leading to transparent ceramics

作　　者：李珍[1] 曹全喜[1] 张红国[1] 

机构地区：[1]西安电子科技大学技术物理学院,陕西西安710071

出　　处：《电子科技》2009年第10期47-49,52,共4页Electronic Science and Technology

摘　　要：采用改进的溶胶-凝胶方法制备了掺钕钇铝石榴石(Nd∶YAG)纳米粉体,利用XRD对所制粉体进行了表征,结果表明当煅烧温度达到900℃时,粉体已经全部转变为Nd∶YAG晶相。同时,采用TG-DTA和FTIR对干凝胶进行了表征。经单轴单向预压成型后,将生坯体放入热压烧结炉中进行无压真空(10-3Pa)烧结,于1 750℃保温10 h,最后得到Nd∶YAG透明陶瓷。实验过程中,使用了适量的正硅酸乙酯(TEOS)作为烧结助剂。High purity of Nd-doped aluminum yttrium garnet （ Nd： YAG） powders, which were characterized by means of XRD, were prepared by a modified sol-gel method. Results show that the powders have Nd： YAG phase structure when the calcined temperature is 900 ℃. TG-DTA and FTIR were also used to characterize the samples. Transparent ceramics were fabricated by pressureless sintering at 1 750 ℃ for 10h under vacuum atmosphere. The transparent Nd： YAG ceramics were investigated by means of SEM. Amount of TEOS were used as additive during the process of sintering.

关 键 词：Nd∶YAG纳米粉体 溶胶-凝胶方法 透明陶瓷 

分 类 号：TN305[电子电信—物理电子学]