合成条件对YAG粉体粒径及显微形貌的影响  

Effect of synthesis conditions on the particle size and micrograph of YAG powders

作　　者：宋杰光[1] 李世斌[1] 纪岗昌[2] 徐明晗[2] 王芳[2] 魏伟[1] 李伟[1] 张联盟[3] 

机构地区：[1]九江学院机械与材料工程学院,江西九江332005 [2]九江学院九江市绿色再制造重点实验室,江西九江332005 [3]武汉理工大学材料复合新技术国家重点试验室,湖北武汉430070

出　　处：《兵器材料科学与工程》2010年第6期7-10,共4页Ordnance Material Science and Engineering

基　　金：国家973计划项目(51331);江西省教育厅青年科学基金项目(GJJ09595);江西省教育科学"十一五"规划课题(09YB449);九江学院大学生自主创新性实验项目(09XSCXXSY13)

摘　　要：为了制备高性能YAG陶瓷,必须获得高性能的YAG粉体。利用共沉淀法在pH=9、滴定速度为10 mL/min和反应时间为60 min的条件下制备YAG前驱体,在1 100℃煅烧后,通过XRD和SEM分析,可获得纯的YAG粉体。研究结果表明,随着pH值升高,YAG粉体平均粒度增大,分布范围变宽,颗粒形状越来越不规则。随着滴定速度增加,粉体平均粒度、粒度分布范围都增大。反应时间越短,YAG颗粒越分散、细小,粒度大小越不均一,颗粒形状越远离球形。In order to prepare high-performance YAG ceramics, the high-performance YAG powders must be prepared. The pure YAG powders were prepared via the co-precipitation method after calcining the precursor of YAG at 1 100℃, the preparation condition are pH=9, the titration rate for 10 mL/min and the reaction time for 60 min. The results show that with pH value increasing, YAG particle size is increased, the distribution range is broadened, the particle shape becomes more and more irregular. With titration rate increasing, YAG particle size is increased, and the distribution range is broadened. With reaction time shortening, the more dispersed and finer YAG particles with uneven size are prepared, the particle shape is more irregular and away from spherical.

关 键 词：钇铝石榴石(YAG)粉体 共沉淀法 物相 粒径 显微形貌 

分 类 号：TQ174.4[化学工程—陶瓷工业]