聚合络合法制备钙稳定氧化锆  

CALCIUM STABILIZED ZIRCONIA PREPARED BY THE ORGANIC POLYMERIZED COMPLEX METHOD

作　　者：刘继进[1] 陈宗璋[1] 何莉萍[1] 李仲英[1] 李素芳[1] 向兰翔 邵长贵 魏定新 

机构地区：[1]湖南大学化学化工学院,长沙410082 [2]中国原子能研究院,北京102413

出　　处：《硅酸盐学报》2002年第2期251-253,共3页Journal of The Chinese Ceramic Society

摘　　要：钙稳定氧化锆 (CSZ)是根据有机物聚合络合法 ,即按照Pechini_type型反应制取的 .将一定量的柠檬酸、乙二醇混合液同ZrOCl2 ·8H2 O和Ca(Ac) 2 ·H2 O在 15 0℃左右发生聚合反应形成一透明的树脂状物质 ,尔后在 45 0℃左右进行炭化 ,得到黑色的混合氧化物前驱体 .对前驱体进行差热和热重分析 ,确定灼烧温度在 10 0 0℃时 ,可得到白色的粉末 .经XRD分析表明 ,得到了立方型的稳定氧化锆 ,晶胞参数为a =5 .10The preparation of calcium stabilized zirconia by organic polymerized complex method is based on the Pechini_type reaction. A mixture of citric acid, ethylene glycol, zirconium oxychloride and calcium acetate was polymerized to a transparent resinous matter at about 150 ℃. The transparent resinous matter was then carbonized to a black powder at 450 ℃, which was used as precursor for preparing calcium_doped ZrO 2. By heating the precursor at 1 000 ℃ for 6 h, the stabilized cubic ZrO 2 powder was obtained with cell parameter of a =5.1 074 ?, as characterized by XRD.

关 键 词：有机络合聚合法 钙稳定氧化锆 立方氧化锆粉末 炭化 

分 类 号：TQ134.12[化学工程—无机化工]