DC Field | Value | Language |
---|---|---|
dc.contributor.author | Oh, Jihun | ko |
dc.contributor.author | Thompson, Carl V. | ko |
dc.date.accessioned | 2013-03-12T16:42:45Z | - |
dc.date.available | 2013-03-12T16:42:45Z | - |
dc.date.created | 2013-02-21 | - |
dc.date.created | 2013-02-21 | - |
dc.date.issued | 2011-04 | - |
dc.identifier.citation | ELECTROCHIMICA ACTA, v.56, no.11, pp.4044 - 4051 | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.uri | http://hdl.handle.net/10203/102899 | - |
dc.description.abstract | Nanoporous anodic aluminum oxide (MO) can be created with pores that self-assemble into ordered configurations. For more than 60 years it has been assumed that field-assisted dissolution of the oxide leads to pore formation, despite a lack of direct experimental evidence that confirms this expectation. In this work, we have developed a method for separately studying the onset of field induced growth instabilities and the instability that leads to pore formation. We find that field-assisted dissolution models are consistent with the observed dependence of the Al2O3 dissolution rate on the electric field, as well as the existence of a critical field for pore initiation. However, we further show that the well-known porous structure, which has a significantly different length scale, does not result from a field-induced instability, but is instead the result of a mechanical instability with forced plastic deformation and flow of the oxide during further anodization. Through interpretation of these results we develop a generalized mechanism for pore formation in MO, and by analogy, for pore formation in other anodization processes. (C) 2011 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | ANODIC OXIDE-FILMS | - |
dc.subject | POROUS ALUMINA | - |
dc.subject | O-18 TRACER | - |
dc.subject | GROWTH | - |
dc.subject | FABRICATION | - |
dc.subject | MECHANISM | - |
dc.subject | MEMBRANES | - |
dc.subject | ARRAYS | - |
dc.subject | FLOW | - |
dc.title | The role of electric field in pore formation during aluminum anodization | - |
dc.type | Article | - |
dc.identifier.wosid | 000290692700040 | - |
dc.identifier.scopusid | 2-s2.0-79954583336 | - |
dc.type.rims | ART | - |
dc.citation.volume | 56 | - |
dc.citation.issue | 11 | - |
dc.citation.beginningpage | 4044 | - |
dc.citation.endingpage | 4051 | - |
dc.citation.publicationname | ELECTROCHIMICA ACTA | - |
dc.identifier.doi | 10.1016/j.electacta.2011.02.002 | - |
dc.contributor.localauthor | Oh, Jihun | - |
dc.contributor.nonIdAuthor | Thompson, Carl V. | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Aluminum oxide | - |
dc.subject.keywordAuthor | Anodization | - |
dc.subject.keywordAuthor | Nanoporous | - |
dc.subject.keywordAuthor | Metal oxide | - |
dc.subject.keywordAuthor | Nanostructure | - |
dc.subject.keywordPlus | ANODIC OXIDE-FILMS | - |
dc.subject.keywordPlus | POROUS ALUMINA | - |
dc.subject.keywordPlus | O-18 TRACER | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | MEMBRANES | - |
dc.subject.keywordPlus | ARRAYS | - |
dc.subject.keywordPlus | FLOW | - |
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