摘要
采用共沉淀法在室温下制备超细Ce -Zr-O粉末。通过激光粒度仪 (LS - 6 0 1)、XRD、TG、比表面积测定仪等对合成粉末进行了分析 ,并考察了料液组成、加料方式、添加剂种类、煅烧温度等合成条件对合成产物粒度的影响。结果表明 :采用硝酸铈锆料液为原料、用氨水作沉淀剂、以反加料方式在室温下沉淀 ,所得沉淀经干燥和煅烧可以得到粒度均匀、悬浮性好的超细Ce -Zr-O粉末。
In this paper,ultra-fine Ce-Zr-O powders were prepared by the means of coprecipitation under the room temperature.The powders were analyzed with Laser particle sizer,XRD,TG,specific measuring and testing instruments.The factors influencing product particle size:such as the composition of mixed liquid,the ways of feeding material,the type of additives,the calcining temperature etc.were studied.The results show that uniform particle size and super suspending ultrafine Ce-Zr-O powders were obtained by the following process:First zirconium nitrate and cerium nitrate were fed into ammonia water to get precipitate under the room temperature;then drying and calcining the precipitate to get product.
出处
《稀有金属与硬质合金》
CAS
CSCD
2002年第2期4-6,共3页
Rare Metals and Cemented Carbides
基金
国家自然科学基金项目 ( 2 0 16 30 0 2 )
江西省科委重点项目
南昌大学211工程标志性资助项目
关键词
超细Ce-Zr-O粉末
合成
粒度
影响因素
ultra-fine Ce-Zr-O powders
synthesis
influence
particle size
influence factors
