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

来源期刊：中国有色金属学报(英文版)1998年第1期

论文作者：Wang Kaiyi Liao Bo Liu Yexiang Wei Qing Qian Dong Chen Xiaoyi Lai Deyong

文章页码：123 - 125

Key words：barium titanate powder;　co-precipitation;　mechanophysical solid effect;　high purity;　 nanometer-scale

Abstract: By using H₂TiO₃ and Ba(NO₃)₂ as the raw materials, and (NH₄)₂CO₃ as the precipitant, high purity(>99.7%) and superfine(<1μm) BaTiO₃ powders were obtained by co-precipitation method. Then the nanometer-scale BaTiO₃ 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.