Hydrothermal Synthesis of Porous Al2O3/Al Metal Ceramics: I. Oxidation of Aluminum Powder and Structure Formation of Porous Al(OH)3/Al Composite

被引：0
|
作者：
A. I. Rat'ko
V. E. Romanenkov
E. V. Bolotnikova
Zh. V. Krupen'kina
机构：
[1] Belarussian Academy of Sciences,Institute of General and Inorganic Chemistry
[2] Ministry of Education of the Republic of Belarus,Institute for the Advanced Training and Retraining of Personnel
来源：
Kinetics and Catalysis | 2004年 / 45卷
关键词：
Oxidation; Precipitation; Aluminum; Microstructure; Hydroxide;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The properties of ASD-1 aluminum powder and its oxidation with water at 100°C were studied. It was found that the microstructure of a surface oxide film and the conditions of oxidation significantly affected the dynamics of changes in the pH of the solution and in the degree of aluminum conversion into the hydroxide. Experimental data on the oxidation in combination with electron-microscopic measurements and the determination of adsorption and texture characteristics resulted in the conclusion that colloid-chemical processes, which include the dissolution of aluminum and the formation and precipitation of the hydroxo complexes of aluminum, are fundamental for the synthesis of porous metal ceramics.
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页码：141 / 148
页数：7
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