液相共沉淀法制备钆镓石榴石(Gd_3Ga_5O_(12),GGG)多晶原料  

Preparation of Gd _3Ga_5O_(12 )(GGG) Polycrystalline Material by Liquid-phase Co-deposition Synthesis Method

作　　者：赵广军[1] 李涛[1] 何晓明[1] 徐军[1] 肖筱华[2] 赵鹤明[2] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800 [2]苏州大学通信与电子工程系,苏州215021

出　　处：《无机材料学报》2002年第3期443-447,共5页Journal of Inorganic Materials

基　　金：中国科学院重点项目;中国科学院高技术研究与发展局资助

摘　　要：采用液相共沉淀的方法制备了钆镓石榴石(ＧＧＧ)的多晶原料,给出了液相合成ＧＧＧ多晶料的工艺步骤及其条件．就组分Ｇｄ２Ｏ３和Ｇａ２Ｏ３的配比,滴定氧化物溶解的混合溶液使其沉淀的ｐＨ值,共沉淀后烧结温度以及烧结时间等影响ＧＧＧ多晶料合成的重要因素进行了讨论．通过和固相合成ＧＧＧ多晶料的条件比较可知,液相合成ＧＧＧ多晶原料的工艺具有合成的ＧＧＧ多晶料均匀充分、合成温度低与烧结时间短等优点．A gadolinium gallium garnet (Gd3Ga5O12,GGG) polycrystalline material was prepared by a liquid-phase co-deposited synthesis method. The optimized procedure and the conditions for preparing the GGG polycrystalline material by the liquid-phase method were reported. The effects of the compositional proportion of Gd2O3 and Ga2O3, pH value of titration, synthesis temperature and sintering time on preparing GGG polycrystalline powders were also discussed. By comparison with the preparation of GGG polycrystalline material by solid-state reaction process, the liquid-phase synthesis method possesses the merits of lower synthesis temperature and shorter sintering time. At the same time, the GGG polycrystalline material prepared by the liquid-phase co-deposited method has high uniformity and exact stoichiometric composition.

关 键 词：液相共沉淀法 制备 钆镓石榴石 多晶原料 烧结 光纤材料 

分 类 号：TN25[电子电信—物理电子学] O782[理学—晶体学]