Hydrothermal synthesis of boehmites with  various particle sizes and transition  to α-Al2O3 powders by calcination

CAS OpenIR

	Hydrothermal synthesis of boehmites with various particle sizes and transition to α-Al2O3 powders by calcination
	Hu P(胡鹏); Hu P(胡鹏); Hu P(胡鹏)
	2005
Source Publication	广东有色金属学报
ISSN	1003-7837
Volume	15.0 Issue:002 Pages:581
Abstract	Boehmite powders with various particle sizes have becn prepared by hydrothermal method and the α-Al2O3 powders yieldcd after subsequent calcination have been studied, Dispersive crystalline boehmite powders of 30-100 nm, 0, 4-0, 6μm and 1μm in size were obtained respectively by changing the hydrothermal precursors and the pH value of hydrothermal slurry. Calcination of boehmite powders of 30-100 nm at 1250℃ for lh resulted in the formation of single phase α-Al2O3, and the products consisted of vermicular particles. The boehmite powders of 0.4-0, 6μm were also fully converted to α-Al2O3 at 1250℃, and the products consisted of plate-like particles with the same size of 0, 4-0, 6μm, The boehmite powders of 1μm calcined at 1350℃ for 2h were still composed of a little proportions of transition aluminas besides α-Al2O3, and the particles sitiered severely. The reaction processes for the formation of crystalline boehmites under hydrothermal conditions and α-Al2O3 powders during calcination have been discussed.
Keyword	热液合成一水软铝石粒子结构粉末结构材料
Language	英语
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/47303
Collection	中国科学院过程工程研究所
Affiliation	中国科学院过程工程研究所
First Author Affilication	中国科学院过程工程研究所
Recommended Citation GB/T 7714	Hu P,Hu P,Hu P. Hydrothermal synthesis of boehmites with various particle sizes and transition to α-Al2O3 powders by calcination[J]. 广东有色金属学报,2005,15.0(002):581.
APA	胡鹏,胡鹏,&胡鹏.(2005).Hydrothermal synthesis of boehmites with various particle sizes and transition to α-Al2O3 powders by calcination.广东有色金属学报,15.0(002),581.
MLA	胡鹏,et al."Hydrothermal synthesis of boehmites with various particle sizes and transition to α-Al2O3 powders by calcination".广东有色金属学报 15.0.002(2005):581.

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