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Article: Quantitative characterization of acid concentration and temperature dependent self-ordering conditions of anodic porous alumina

TitleQuantitative characterization of acid concentration and temperature dependent self-ordering conditions of anodic porous alumina
Authors
KeywordsAcid concentrations
Angular orientation
Anodic porous alumina
Anodizations
Higher temperatures
Issue Date2011
PublisherAmerican 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?
AbstractAcid 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 Identifierhttp://hdl.handle.net/10722/157165
ISSN
2015 Impact Factor: 1.444
2015 SCImago Journal Rankings: 0.471
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants CouncilHKU7159/10E
University Grants Committee of the Hong Kong Special Administration Region, P.R. ChinaSEG-HKU06
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 FieldValueLanguage
dc.contributor.authorCheng, Cen_US
dc.contributor.authorNg, KYen_US
dc.contributor.authorNgan, AHWen_US
dc.date.accessioned2012-08-08T08:45:37Z-
dc.date.available2012-08-08T08:45:37Z-
dc.date.issued2011en_US
dc.identifier.citationAIP Advances, 2011, v. 1 n. 4, article no. 042113en_US
dc.identifier.issn2158-3226en_US
dc.identifier.urihttp://hdl.handle.net/10722/157165-
dc.description.abstractAcid 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.languageengen_US
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://aipadvances.aip.org/-
dc.relation.ispartofAIP Advancesen_US
dc.rightsAIP Advances. Copyright © American Institute of Physics.-
dc.rightsCopyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in (AIP Advances, 2011, v. 1 n. 4, article no. 042113) and may be found at (http://aipadvances.aip.org/resource/1/aaidbi/v1/i4/p042113_s1).-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectAcid concentrations-
dc.subjectAngular orientation-
dc.subjectAnodic porous alumina-
dc.subjectAnodizations-
dc.subjectHigher temperatures-
dc.titleQuantitative characterization of acid concentration and temperature dependent self-ordering conditions of anodic porous aluminaen_US
dc.typeArticleen_US
dc.identifier.emailCheng, C: chuan@hku.hken_US
dc.identifier.emailNg, KY: kycng@hku.hken_US
dc.identifier.emailNgan, AHW: hwngan@hkucc.hku.hk-
dc.identifier.authorityNg, KY=rp01365en_US
dc.identifier.authorityNgan, AHW=rp00225en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1063/1.3655416en_US
dc.identifier.scopuseid_2-s2.0-84855301758en_US
dc.identifier.hkuros197650-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84855301758&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume1en_US
dc.identifier.issue4, article no. 042113en_US
dc.identifier.isiWOS:000302141100038-
dc.publisher.placeUnited States-
dc.identifier.scopusauthoridNgan, AHW=7006827202en_US
dc.identifier.scopusauthoridNg, KY=26434356600en_US
dc.identifier.scopusauthoridCheng, C=51565473900en_US

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