Self-similarity in the structure of coarsened nanoporous gold.
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| Title: | Self-similarity in the structure of coarsened nanoporous gold. |
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| Authors: | Jeon, Hansol1, Kang, Na-Ri1, Gwak, Eun-Ji1, Jang, Jae-il2, Han, Heung Nam3, Hwang, Jun Yeon4, Lee, Sukbin1 sukbinlee@unist.ac.kr, Kim, Ju-Young1,5 juyoung@unist.ac.kr |
| Source: | Scripta Materialia. Aug2017, Vol. 137, p46-49. 4p. |
| Subjects: | Self-similar processes, Nanoporous materials, Gold nanoparticles, Heat treatment of metals, Activation energy, Diffusion, Metallic surfaces |
| Abstract: | Nanoporous gold (np-Au) samples of ligament sizes 68.6, 248.6, 462.9, and 710.9 nm are prepared by heat treatment, and representative volumes are reconstructed by focused ion beam (FIB) tomography. The increase in relative density by thermal coarsening is not pronounced. We analyze the distribution of ligament size, surface-to-volume ratio, and scaled connectivity density for coarsened np-Au, revealing that np-Au coarsens in a self-similar way. The measured activation energy for thermal coarsening supports that it is accomplished by surface diffusion of Au. [ABSTRACT FROM AUTHOR] |
| Copyright of Scripta Materialia is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 123501515 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Self-similarity in the structure of coarsened nanoporous gold. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Jeon%2C+Hansol%22">Jeon, Hansol</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kang%2C+Na-Ri%22">Kang, Na-Ri</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gwak%2C+Eun-Ji%22">Gwak, Eun-Ji</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jang%2C+Jae-il%22">Jang, Jae-il</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Han%2C+Heung+Nam%22">Han, Heung Nam</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Hwang%2C+Jun+Yeon%22">Hwang, Jun Yeon</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+Sukbin%22">Lee, Sukbin</searchLink><relatesTo>1</relatesTo><i> sukbinlee@unist.ac.kr</i><br /><searchLink fieldCode="AR" term="%22Kim%2C+Ju-Young%22">Kim, Ju-Young</searchLink><relatesTo>1,5</relatesTo><i> juyoung@unist.ac.kr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Scripta+Materialia%22">Scripta Materialia</searchLink>. Aug2017, Vol. 137, p46-49. 4p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Self-similar+processes%22">Self-similar processes</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoporous+materials%22">Nanoporous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Gold+nanoparticles%22">Gold nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment+of+metals%22">Heat treatment of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Activation+energy%22">Activation energy</searchLink><br /><searchLink fieldCode="DE" term="%22Diffusion%22">Diffusion</searchLink><br /><searchLink fieldCode="DE" term="%22Metallic+surfaces%22">Metallic surfaces</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Nanoporous gold (np-Au) samples of ligament sizes 68.6, 248.6, 462.9, and 710.9 nm are prepared by heat treatment, and representative volumes are reconstructed by focused ion beam (FIB) tomography. The increase in relative density by thermal coarsening is not pronounced. We analyze the distribution of ligament size, surface-to-volume ratio, and scaled connectivity density for coarsened np-Au, revealing that np-Au coarsens in a self-similar way. The measured activation energy for thermal coarsening supports that it is accomplished by surface diffusion of Au. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Scripta Materialia is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.scriptamat.2017.05.009 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 4 StartPage: 46 Subjects: – SubjectFull: Self-similar processes Type: general – SubjectFull: Nanoporous materials Type: general – SubjectFull: Gold nanoparticles Type: general – SubjectFull: Heat treatment of metals Type: general – SubjectFull: Activation energy Type: general – SubjectFull: Diffusion Type: general – SubjectFull: Metallic surfaces Type: general Titles: – TitleFull: Self-similarity in the structure of coarsened nanoporous gold. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Jeon, Hansol – PersonEntity: Name: NameFull: Kang, Na-Ri – PersonEntity: Name: NameFull: Gwak, Eun-Ji – PersonEntity: Name: NameFull: Jang, Jae-il – PersonEntity: Name: NameFull: Han, Heung Nam – PersonEntity: Name: NameFull: Hwang, Jun Yeon – PersonEntity: Name: NameFull: Lee, Sukbin – PersonEntity: Name: NameFull: Kim, Ju-Young IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 13596462 Numbering: – Type: volume Value: 137 Titles: – TitleFull: Scripta Materialia Type: main |
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