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DC Field | Value | Language |
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dc.citation.startPage | 5176 | - |
dc.citation.title | SCIENTIFIC REPORTS | - |
dc.citation.volume | 4 | - |
dc.contributor.author | Kim, Hyo Jin | - |
dc.contributor.author | Lee, Sung-Min | - |
dc.contributor.author | Oh, Yoon-Suk | - |
dc.contributor.author | Yang, Young-Hwan | - |
dc.contributor.author | Lim, Young Soo | - |
dc.contributor.author | Yoon, Dae Ho | - |
dc.contributor.author | Lee, Changgu | - |
dc.contributor.author | Kim, Jong-Young | - |
dc.contributor.author | Ruoff, Rodney S. | - |
dc.date.accessioned | 2023-12-22T02:37:31Z | - |
dc.date.available | 2023-12-22T02:37:31Z | - |
dc.date.created | 2020-08-07 | - |
dc.date.issued | 2014-06 | - |
dc.description.abstract | It is of critical importance to improve toughness, strength, and wear-resistance together for the development of advanced structural materials. Herein, we report on the synthesis of unoxidized graphene/alumina composite materials having enhanced toughness, strength, and wear-resistance by a low-cost and environmentally benign pressure-less-sintering process. The wear resistance of the composites was increased by one order of magnitude even under high normal load condition (25 N) as a result of a tribological effect of graphene along with enhanced fracture toughness (K-IC) and flexural strength (sigma(f)) of the composites by similar to 75% (5.60 MPa.m(1/2)) and similar to 25% (430 MPa), respectively, compared with those of pure Al2O3. Furthermore, we found that only a small fraction of ultra-thin graphene (0.25-0.5 vol%, platelet thickness of 2-5 nm) was enough to reinforce the composite. In contrast to unoxidized graphene, graphene oxide (G-O) and reduced graphene oxide (rG-O) showed little or less enhancement of fracture toughness due to the degraded mechanical strength of rG-O and the structural defects of the G-O composites. | - |
dc.identifier.bibliographicCitation | SCIENTIFIC REPORTS, v.4, pp.5176 | - |
dc.identifier.doi | 10.1038/srep05176 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.scopusid | 2-s2.0-84902096319 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/47484 | - |
dc.identifier.url | https://www.nature.com/articles/srep05176 | - |
dc.identifier.wosid | 000336788500002 | - |
dc.language | 영어 | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Unoxidized Graphene/Alumina Nanocomposite: Fracture- and Wear-Resistance Effects of Graphene on Alumina Matrix | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | WALL CARBON NANOTUBES | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | LAYER GRAPHENE | - |
dc.subject.keywordPlus | ELASTIC PROPERTIES | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | GRAPHITE | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.subject.keywordPlus | TOUGHNESS | - |
dc.subject.keywordPlus | STRENGTH | - |
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