Recoverable Slippage Mechanism in Multilayer Graphene Leads to   Repeatable Energy Dissipation

doi:10.1021/acsnano.5b04939

CORC > 北京大学 > 工学院

	Recoverable Slippage Mechanism in Multilayer Graphene Leads to Repeatable Energy Dissipation
	Wei, Xiaoding ; Meng, Zhaoxu ; Ruiz, Luis ; Xia, Wenjie ; Lee, Changgu ; Kysar, Jeffrey W. ; Hone, James C. ; Keten, Sinan ; Espinosa, Horacio D.
刊名	ACS NANO
	2016
关键词	graphene slippage stacking nonlinearity energy dissipation strength FEW-LAYER GRAPHENE BILAYER GRAPHENE SINGLE-LAYER NANOCOMPOSITES NANOWIRES STACKING GRAPHITE MODEL
DOI	10.1021/acsnano.5b04939
英文摘要	Understanding the deformation mechanisms in multilayer graphene (MLG), an attractive material used in nanodevices as well as in the reinforcement of nanocomposites, is critical yet challenging due to difficulties in experimental characterization and the spatiotemp oral limitations of atomistic modeling. In this study, we combine nanomechanical experiments with coarse-grained molecular dynamics (CG-MD) simulations to elucidate the mechanisms of deformation and failure of MLG sheets. Elastic properties of graphene sheets with one to three layers are measured using film deflection tests. A nonlinear behavior in the force vs deflection curves for MLGs is observed in both experiments simulations: during loading/unloading cycles, MLGs dissipate energy through a "recoverable slippage" mechanism. The CG-MD simulations further reveal an atomic level interlayer slippage process and suggest that the dissipated energy scales with film perimeter. Moreover, our study demonstrates that the finite shear strength between individual layers could explain the experimentally measured size dependent strength with thickness scaling in MLG sheets.; NSF through DMREF Award [CMMI-1235480, CMMI-1437450]; ARO through MURI Award [W911NF-08-1-0541]; Department of Civil & Environmental Engineering and Mechanical Engineering at Northwestern University; Quest HPC System at Northwestern University; Basic Science Research Program - Korean Government Ministry of Science, ICT and Future Planning [2009-0083540]; SCI(E); EI; ARTICLE; s-keten@northwestern.edu; espinosa@northwestern.edu; 2; 1820-1828; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437665]
专题	工学院
推荐引用方式 GB/T 7714	Wei, Xiaoding,Meng, Zhaoxu,Ruiz, Luis,et al. Recoverable Slippage Mechanism in Multilayer Graphene Leads to Repeatable Energy Dissipation[J]. ACS NANO,2016.
APA	Wei, Xiaoding.,Meng, Zhaoxu.,Ruiz, Luis.,Xia, Wenjie.,Lee, Changgu.,...&Espinosa, Horacio D..(2016).Recoverable Slippage Mechanism in Multilayer Graphene Leads to Repeatable Energy Dissipation.ACS NANO.
MLA	Wei, Xiaoding,et al."Recoverable Slippage Mechanism in Multilayer Graphene Leads to Repeatable Energy Dissipation".ACS NANO (2016).