DC Field | Value | Language |
---|---|---|
dc.contributor.author | Na, Ye-eun | ko |
dc.contributor.author | Shin, Dahye | ko |
dc.contributor.author | Kim, Kisun | ko |
dc.contributor.author | Ahn, Changui | ko |
dc.contributor.author | Jeon, Seokwoo | ko |
dc.contributor.author | Jang, Dongchan | ko |
dc.date.accessioned | 2019-01-22T08:58:50Z | - |
dc.date.available | 2019-01-22T08:58:50Z | - |
dc.date.created | 2018-12-04 | - |
dc.date.created | 2018-12-04 | - |
dc.date.issued | 2018-11 | - |
dc.identifier.citation | SMALL, v.14, no.44, pp.1802239 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.uri | http://hdl.handle.net/10203/249173 | - |
dc.description.abstract | Density-strength tradeoff appears to be an inherent limitation for most materials and therefore design of cell topology that mitigates strength decrease with density reduction has been a long-lasting engineering pursue for porous materials. Continuum-mechanics-based analyses of mechanical responses of conventional porous materials with bending-dominated structures often give the density-strength scaling law following the power-law relationship with an exponent of 1.5 or higher, which consequentially determines the upper bound of the specific strength for a material to reach. In this work, a new design criterion capable of significantly abating strength degradation in lightweight materials is presented, by successfully combining the size-induced strengthening effect in nanomaterials with the architectural design of cellular porous materials. Hollow-tube-based 3D ceramic nanoarchitectures satisfying such criterion are fabricated in large area using proximity field nano-patterning and atomic layer deposition. Experimental data from micropillar compression confirm that the strengths of these nanoarchitectural materials scale with relative densities with a power-law exponent of 0.93, a hardly observable value in conventional bending-dominated porous materials. This discovery of a new density-strength scaling law in nanoarchitectured materials will contribute to creating new lightweight structural materials attaining unprecedented specific strengths overcoming the conventional limit. | - |
dc.language | English | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Emergence of New Density-Strength Scaling Law in 3D Hollow Ceramic Nanoarchitectures | - |
dc.type | Article | - |
dc.identifier.wosid | 000452144000004 | - |
dc.identifier.scopusid | 2-s2.0-85054475885 | - |
dc.type.rims | ART | - |
dc.citation.volume | 14 | - |
dc.citation.issue | 44 | - |
dc.citation.beginningpage | 1802239 | - |
dc.citation.publicationname | SMALL | - |
dc.identifier.doi | 10.1002/smll.201802239 | - |
dc.contributor.localauthor | Jeon, Seokwoo | - |
dc.contributor.localauthor | Jang, Dongchan | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | micropillar compression | - |
dc.subject.keywordAuthor | nanoarchitecture | - |
dc.subject.keywordAuthor | proximity field nanopatterning | - |
dc.subject.keywordAuthor | size-induced strengthening | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | DEFORMATION | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | FOAMS | - |
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