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Nanolaminate of metallic glass and graphene with enhanced elastic modulus, strength, and ductility in tension

Cited 7 time in webofscience Cited 7 time in scopus
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Title
Nanolaminate of metallic glass and graphene with enhanced elastic modulus, strength, and ductility in tension
Author(s)
Sun-Young Park; Eun-Ji Gwak; Ming Huang; Rodney S. Ruoff; Ju-Young Kim
Subject
Graphene, ; Metallic glass, ; Multilayers thin films, ; Sputtering, ; Tension test
Publication Date
2017-10
Journal
SCRIPTA MATERIALIA, v.139, pp.63 - 66
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
We fabricate a nanolaminate by repeated co-sputter deposition of a 60 nm-thick Cu50Zr50 metallic glass layer alternating with transfer of graphene. In situ micro-tensile tests reveal that the addition of a very small fraction (0.46 vol%) of graphene in the nanolaminate improve the elastic modulus and yield strength of the nanolaminate by 9.6% and 14%, respectively, comparing with those of the 360 nm-thick monolithic Cu50Zr50 metallic glass. The nanolaminate also show enhanced tensile ductility: an ultimate tensile strength of 2.23 GPa and fracture strain of 5.39% were attained by strain-hardening after yielding at 1.98 GPa stress and 3.69% strain. © 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
URI
https://pr.ibs.re.kr/handle/8788114/3867
DOI
10.1016/j.scriptamat.2017.06.031
ISSN
1359-6462
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
13. 1-s2.0-S1359646217303445-main.pdfDownload

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