Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1473416 | Journal of Asian Ceramic Societies | 2013 | 8 Pages |
Abstract
Mechanism of aluminum powder corrosion in calcium hydroxide solutions was investigated via various analyses of residues after its hydrolysis reaction and pH change of the solutions to control the release of hydrogen gas. It was revealed that the reaction with a release of hydrogen gas consisted of katoite formation and hydration of aluminum. The katoite formation, which is progressed by the reaction among calcium ion, aluminum hydroxide anion (Al(OH)4−), and water molecules at the first step, is important for the promotion of aluminum corrosion and moderate release of hydrogen gas.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Shingo Kanehira, Susumu Kanamori, Kohji Nagashima, Takashi Saeki, Heidy Visbal, Toshimi Fukui, Kazuyuki Hirao,