共沉淀法合成ZrO_2-Th陶瓷固化体及其性能研究  

RESEARCH ON SYNTHESIS AND PERFORMANCE OF ZIRCONIA-THORIUM CERAMICS

作　　者：钟昌贝 刘晓东[1,2] 罗太安[1,2] 陈泉水[1,2] 任广元[1,2] 

机构地区：[1]东华理工大学材料科学与工程系,抚州344000 [2]东华理工大学核资源与环境省部共建国家重点实验培养基地,南昌330013

出　　处：《中国陶瓷》2013年第4期4-5,24,共3页China Ceramics

基　　金：科技部国际合作项目(2009DFR60440);放射性地质与勘探国防重点学科实验室开放基金项目(2011RGET014)

摘　　要：以硝酸氧锆[ZrO(NO3)2.2H2O]和硝酸钍[ThN4O12]为原料,采用共沉淀法制备了包容钍的斜锆石固化体的前驱体。探讨了1500℃下固化体的制备工艺。利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)和电子探针(EPMA)对所制备固化体的物相、含量、结构及微观形貌进行了分析。结果表明:固化体主物相以斜锆石物相为主,具有较高的结晶度;钍的包容量为5%(以摩尔计,下同);粒度主要分布在0.5～6.0μm之间,形态以板块状为主。Take [ZrO（NO3）2. 2H20] and [ThN4012] as material,use comprecipitation method synthesis zirconia based ceramic with 5%（in mol） thorium.Discussed the preparation technology of the synthesis at 1500~C. The phases of the Zircon-Cerium were analyzed by X-diffraction ray. The microstructure and compositions of section was analyzed using scanning electron microscope of backscattered electron. The solid state compositon was analyzed using electron probe.The results showed the synthesis that based zirconia ceramic with 5% thorium as the main phase, have a high crystallization, crystalline grain is plate between 0.5 to 6.0 u re,and the main form is plate shape.

关 键 词：斜锆石 固化 共沉淀 钍 

分 类 号：TQ174[化学工程—陶瓷工业]