掺杂镧BaTiO_3基超细微粉的制备及表征

Preparation and Characterization of BaTiO_3-based Ultra-fine Powders Doped by Lanthanium

以钛酸四丁脂、醋酸钡、醋酸镧为原料 ,采用溶胶 -凝胶法制备了掺杂镧BaTiO3 基超细微粉 ,利用DTA、XRD、SEM等测试手段对超细微粉进行了表征。根据Scherrer计算可知 。

BaTiO3 based ultra fine powders doped by lanthanium is prepared by sol-gel process using tetrathoxysilance(TEOS), Mg(NO3)2·6H2O and Al(NO3)3·9H2O as raw materials. The structure and compositions of the Ultra fine powders are characterized by XRD,DTA and SEM.The partical sizes are determined to be 40 nm using Scherrer's formula.