共沉淀法制取超细Al_2O_3-PSZ粉末的工艺研究  

Study on the Technique of Ultrafine Al-2O_3-PSZ Powder

作　　者：汤慧萍[1] 廖际常[1] 刘学辉[1] 王志[1] 宣林杰 谈萍[1] 

机构地区：[1]西北有色金属研究院,宝鸡721014

出　　处：《稀有金属材料与工程》1991年第6期49-52,共4页Rare Metal Materials and Engineering

摘　　要：探索了用共沉淀法制取Al_2O_3-PSZ粉末时,不同溶液浓度、沉淀剂加入速度及溶液pH值对最终粉末粒度的影响及作用机理。发现当ZrOCl_2浓度为3.6wt%、NH_3·H_2O浓度为25wt%、NH_3·H_2O加入速度为20ml/s、pH值在10—11之间时,可制得成份均匀,粒度在0.1—0.2μm间的球形Al_2O_3-PZS粉末。Ultrafine Al_2O_3-PSZ (?)owder was fabricated by co-precipitation method. The influences of the solution concentration, the adding rate of precipitant and pH value on the powder properties are studied. A spherical Al_2O_3-PSZ powder with the partical size of 0.1—0.2μm can be obtained when ZrOCl_2 and NH_3·H_2O concentrations are 3.6wt%, and 25wt%, respecting, adding rate of NH_3·H_2O is 20ml/s, and oH value was 10—11.

关 键 词：共沉淀 Al2O3-PSZ 超细粉 

分 类 号：TF125.42[冶金工程—粉末冶金]