Indentation size effect in nanoporous gold
DC Field | Value | Language |
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dc.contributor.author | Kim, Young-Cheon | - |
dc.contributor.author | Gwak, Eun-Ji | - |
dc.contributor.author | Ahn, Seung-min | - |
dc.contributor.author | Jang, Jae-il | - |
dc.contributor.author | Han, Heung Nam | - |
dc.contributor.author | Kim, Ju-Young | - |
dc.date.accessioned | 2021-08-02T14:29:08Z | - |
dc.date.available | 2021-08-02T14:29:08Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2017-10 | - |
dc.identifier.issn | 1359-6454 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/18738 | - |
dc.description.abstract | We find that hardness of nanoporous gold (np-Au) measured by nanoindentation tends to increase with decreasing indentation depth, similar to the indentation size effect (ISE) in solid materials. While ISE in solid materials is attributed to a local increase in density of geometrically necessary dislocations (GNDs), the origin of ISE in np-Au has not been studied systematically. We prepare four np-Au samples with ligament sizes of 26, 73,126, and 630 nm by free corrosion dealloying and post heat treatments. For the normalized hardness (hardness/macroscopic hardness) vs normalized indentation depth (indentation depth/three times ligament size), we find that the ISE trends for three np-Au samples of ligament sizes 26, 73, and 127 nm are almost identical, while an enhanced ISE is shown for np-Au with greatest ligament size, 630 nm. We investigate ISE in np-Au based on nanomechanics model for nanoindentation on np-Au with a sharp indenter, uniaxial compression and pure shear testing for np-Au. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Indentation size effect in nanoporous gold | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jang, Jae-il | - |
dc.identifier.doi | 10.1016/j.actamat.2017.07.040 | - |
dc.identifier.scopusid | 2-s2.0-85025681357 | - |
dc.identifier.wosid | 000410018200005 | - |
dc.identifier.bibliographicCitation | ACTA MATERIALIA, v.138, pp.52 - 60 | - |
dc.relation.isPartOf | ACTA MATERIALIA | - |
dc.citation.title | ACTA MATERIALIA | - |
dc.citation.volume | 138 | - |
dc.citation.startPage | 52 | - |
dc.citation.endPage | 60 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.subject.keywordPlus | DUCTILE CELLULAR SOLIDS | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | CATALYTIC-ACTIVITY | - |
dc.subject.keywordPlus | YIELD STRENGTH | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordPlus | AU | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | STRAIN | - |
dc.subject.keywordPlus | SCALE | - |
dc.subject.keywordPlus | NANOINDENTATION | - |
dc.subject.keywordAuthor | Nanoporous gold | - |
dc.subject.keywordAuthor | Nanoindentation | - |
dc.subject.keywordAuthor | Porous materials | - |
dc.subject.keywordAuthor | Hardness | - |
dc.subject.keywordAuthor | Indentation size effect | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S135964541730602X?via%3Dihub | - |
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