PREPARATION OF ULTRAFINE ALUMINA POWDERS BY ALUMINUM ISOPROPOXIDE
来源期刊:中国有色金属学报(英文版)1994年第2期
论文作者:Yu Zhongqing Zhao Qinsheng Zhang Qixiu
文章页码:21 - 24
Key words:aluminum Isopropoxide; alumina; ultrafine powders; hydrolysis; calcination
Abstract: The porous γ-AlOOH powders were obtained by the hydrolysis of aluminum isopropoxide in the alkaline (C6~9)solutions. The disperse α-Al2O3 powders, with the mean diameter of 70 nmand apparent density of 0.14 g/cm3,were obtained by the calcination of said γ-AlOOH powdersat suitable temperature.The thermal behavior and changes in powder morphology of AlOOH dur-ing the calcination process were also discussed.