Self-similarity in the structure of coarsened nanoporous gold.

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Title: Self-similarity in the structure of coarsened nanoporous gold.
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.)
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Header DbId: egs
DbLabel: Engineering Source
An: 123501515
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PubTypeId: academicJournal
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  Data: Self-similarity in the structure of coarsened nanoporous gold.
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  Data: <searchLink fieldCode="JN" term="%22Scripta+Materialia%22">Scripta Materialia</searchLink>. Aug2017, Vol. 137, p46-49. 4p.
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  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>
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  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]
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  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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      – Type: doi
        Value: 10.1016/j.scriptamat.2017.05.009
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      – Code: eng
        Text: English
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        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
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      – TitleFull: Self-similarity in the structure of coarsened nanoporous gold.
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            NameFull: Jeon, Hansol
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            NameFull: Kang, Na-Ri
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            NameFull: Jang, Jae-il
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            NameFull: Han, Heung Nam
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              M: 08
              Text: Aug2017
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              Y: 2017
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