PREPARATION OF HIGH-PURITY AND NANOMETER-SCALE BARIUM TITANATE POWDERS  

作　　者：Wang Kaiyi, Liao Bo, Liu Yexiang, Wei Qing, Qian Dong, Chen Xiaoyi and Lai DeyongDepartment of Chemistry,Central South University of Technology, Changsha 410083, P. R. China 

出　　处：《中国有色金属学会会刊：英文版》1998年第1期124-126,共3页Transactions of Nonferrous Metals Society of China

摘　　要：ＰＲＥＰＡＲＡＴＩＯＮＯＦＨＩＧＨＰＵＲＩＴＹＡＮＤＮＡＮＯＭＥＴＥＲＳＣＡＬＥＢＡＲＩＵＭＴＩＴＡＮＡＴＥＰＯＷＤＥＲＳ①ＷａｎｇＫａｉｙｉ，ＬｉａｏＢｏ，ＬｉｕＹｅｘｉａｎｇ，ＷｅｉＱｉｎｇ，ＱｉａｎＤｏｎｇ，ＣｈｅｎＸｉａｏｙｉａｎｄＬａｉ...By using H_2TiO_3 and Ba(NO_3)_2 as the raw materials, and (NH4)2CO_3 as the precipitant, high purity(>99.7%) and superfine(<1 μm) BaTiO_3 powders were obtained by coprecipitation method. Then the nanometerscale BaTiO_3 powders were prepared with the mechanophysical solid effect equipment. The equipment of the present process is characterized by simplicity, convenience and low capital cost. Hence it is suitable for industrial production.

关 键 词：BARIUM TITANATE powder CO-PRECIPITATION mechanophysical solid effect high PURITY nanometerscale 

分 类 号：TQ132.35[化学工程—无机化工]