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Article: Quantitative characterization of acid concentration and temperature dependent self-ordering conditions of anodic porous alumina
Title | Quantitative characterization of acid concentration and temperature dependent self-ordering conditions of anodic porous alumina | ||||||
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Authors | |||||||
Keywords | Acid concentrations Angular orientation Anodic porous alumina Anodizations Higher temperatures | ||||||
Issue Date | 2011 | ||||||
Publisher | American Institute of Physics. The Journal's web site is located at http://aipadvances.aip.org/ | ||||||
Citation | AIP Advances, 2011, v. 1 n. 4, article no. 042113 How to Cite? | ||||||
Abstract | Acid concentration and temperature dependent self-ordering conditions of anodic porous alumina formed by anodization of aluminum in oxalic acid are quantitatively characterized by a new technique involving the distribution of the angular orientation of the triangles formed by neighboring pore centers, in order to detect the self-ordering domains in each porous pattern. This technique is found to be more sensitive in quantifying ordering of the patterns than the radial distribution function and angle distribution function. Using this technique, the optimal acid concentration which can result in the best self-ordering of the porous alumina under a given temperature is established. The optimal acid concentration is found to be approximately linearly increasing with temperature. The oxide growth rate increases approximately exponentially with acid concentration and also with temperature. The results suggest that anodization conducted at relatively higher temperatures at the corresponding optimal acid concentrations can enable fast production of self-ordered anodic porous alumina for industrial applications. © 2011 Copyright 2011 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. | ||||||
Persistent Identifier | http://hdl.handle.net/10722/157165 | ||||||
ISSN | 2023 Impact Factor: 1.4 2023 SCImago Journal Rankings: 0.337 | ||||||
ISI Accession Number ID |
Funding Information: C.C thanks Prof. N. R. Aluru for providing him a visiting scholar position at the University of Illinois at Urbana-Champaign. The authors thank S. Wang for help in fabricating the anodization setup used in this work. The work described in this paper was supported by grants from the Research Grants Council (Project No. HKU7159/10E), as well as from the University Grants Committee (Project No. SEG-HKU06) of the Hong Kong Special Administration Region, P.R. China. | ||||||
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cheng, C | en_US |
dc.contributor.author | Ng, KY | en_US |
dc.contributor.author | Ngan, AHW | en_US |
dc.date.accessioned | 2012-08-08T08:45:37Z | - |
dc.date.available | 2012-08-08T08:45:37Z | - |
dc.date.issued | 2011 | en_US |
dc.identifier.citation | AIP Advances, 2011, v. 1 n. 4, article no. 042113 | - |
dc.identifier.issn | 2158-3226 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/157165 | - |
dc.description.abstract | Acid concentration and temperature dependent self-ordering conditions of anodic porous alumina formed by anodization of aluminum in oxalic acid are quantitatively characterized by a new technique involving the distribution of the angular orientation of the triangles formed by neighboring pore centers, in order to detect the self-ordering domains in each porous pattern. This technique is found to be more sensitive in quantifying ordering of the patterns than the radial distribution function and angle distribution function. Using this technique, the optimal acid concentration which can result in the best self-ordering of the porous alumina under a given temperature is established. The optimal acid concentration is found to be approximately linearly increasing with temperature. The oxide growth rate increases approximately exponentially with acid concentration and also with temperature. The results suggest that anodization conducted at relatively higher temperatures at the corresponding optimal acid concentrations can enable fast production of self-ordered anodic porous alumina for industrial applications. © 2011 Copyright 2011 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. | en_US |
dc.language | eng | en_US |
dc.publisher | American Institute of Physics. The Journal's web site is located at http://aipadvances.aip.org/ | - |
dc.relation.ispartof | AIP Advances | en_US |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Acid concentrations | - |
dc.subject | Angular orientation | - |
dc.subject | Anodic porous alumina | - |
dc.subject | Anodizations | - |
dc.subject | Higher temperatures | - |
dc.title | Quantitative characterization of acid concentration and temperature dependent self-ordering conditions of anodic porous alumina | en_US |
dc.type | Article | en_US |
dc.identifier.email | Cheng, C: chuan@hku.hk | en_US |
dc.identifier.email | Ng, KY: kycng@hku.hk | en_US |
dc.identifier.email | Ngan, AHW: hwngan@hkucc.hku.hk | - |
dc.identifier.authority | Ng, KY=rp01365 | en_US |
dc.identifier.authority | Ngan, AHW=rp00225 | en_US |
dc.description.nature | published_or_final_version | en_US |
dc.identifier.doi | 10.1063/1.3655416 | en_US |
dc.identifier.scopus | eid_2-s2.0-84855301758 | en_US |
dc.identifier.hkuros | 197650 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-84855301758&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 1 | en_US |
dc.identifier.issue | 4 | - |
dc.identifier.spage | article no. 042113 | - |
dc.identifier.epage | article no. 042113 | - |
dc.identifier.isi | WOS:000302141100038 | - |
dc.publisher.place | United States | - |
dc.identifier.scopusauthorid | Ngan, AHW=7006827202 | en_US |
dc.identifier.scopusauthorid | Ng, KY=26434356600 | en_US |
dc.identifier.scopusauthorid | Cheng, C=51565473900 | en_US |
dc.identifier.issnl | 2158-3226 | - |