Mechanism of aluminum hydroxide layer formation by surface modification of aluminium

Title
Mechanism of aluminum hydroxide layer formation by surface modification of aluminium
Authors
서영익이정중김대군이규환김영도
Keywords
Akali surface modification; Aluminum hydroxide; Mesoporous surface; Gibbsite
Issue Date
2010-05
Publisher
Applied surface science
Citation
VOL 256, NO 14, 4434-4437
Abstract
In this study, a new, relatively simple and rapid fabrication method for forming an Al(OH)₃film on Al substrates was demonstrated. This method, i.e., alkali surface modification, is simply comprised of dipping the substrate in a 5 × 10-3 M NaOH solution at 80℃ for 1 min and then immersing it in boiling water for 30 min. After alkali surface modification, an Al(OH)₃film was formed on Al substrate, and its chemical state and crystal structurewere confirmed by XPS and TEM. The Al(OH)₃layer was composed of three regions: an amorphous-rich region, a region of mixed amorphous and crystal domains, and a crystalline-rich region near the Al(OH)₃layer surface.
URI
http://pubs.kist.re.kr/handle/201004/38364
ISSN
0169-4332
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KIST Publication > Article
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