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  5. Effect of manganese content on the fabrication of porous anodic alumina
 
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Effect of manganese content on the fabrication of porous anodic alumina

Journal
Journal of Nanomaterials
ISSN
1687-4110
1687-4129
Date Issued
2012
Author(s)
Voon Chun Hong
Universiti Malaysia Perlis
M. N. Derman
Universiti Malaysia Perlis
Uda Hashim
Universiti Malaysia Perlis
DOI
10.1155/2012/752926
Handle (URI)
https://www.hindawi.com/journals/jnm/2012/752926/
https://www.hindawi.com/journals/jnm/
https://hdl.handle.net/20.500.14170/2103
Abstract
The influence of manganese content on the formation of well-ordered porous anodic alumina was studied. Porous anodic alumina has been produced on aluminium substrate of different manganese content by single-step anodizing at 50 V in 0.3 M oxalic acid at 15°C for 60 minutes. The well-ordered pore and cell structure was revealed by subjecting the porous anodic alumina to oxide dissolution treatment in a mixture of chromic acid and phosphoric acid. It was found that the manganese content above 1 wt% impaired the regularity of the cell and pore structure significantly, which can be attributed to the presence of secondary phases in the starting material with manganese content above 1 wt%. The pore diameter and interpore distance decreased with the addition of manganese into the substrates. The time variation of current density and the thickness of porous anodic alumina also decreased as a function of the manganese content in the substrates.
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Effect of manganese content on the fabrication of porous anodic alumina (D).pdf (10.96 MB)
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