212 citations · 412 across the 17 of their papers we have counts for
11 papers · 1 filter
Interfacial stress transfer in monolayer and few-layer MoS2 nanosheets in model nanocomposites
Ming Dong, Robert J. Young, David J. Dunstan +1
Understanding the stress transfer mechanisms from a polymer matrix to two-dimensional reinforcements is essential for the preparation of high performance nanocomposites. In this st…
Graphene on silicon: effects of the silicon surface orientation on the work function and carrier density of graphene
Y. W. Sun, D. Holec, D. Gehringer +4
Density functional theory has been employed to study graphene on the (111), (100) and (110) surfaces of silicon (Si) substrates. There are several interesting findings. First, carb…
Disruption of the bonding by the compression of the -electronic orbitals of graphene at various stacking orders
Yiwei Sun, David Holec, Dominik Nöger +2
We investigate the behaviour of the -electrons under compression and the effect of the stacking order of graphene layers. First we find that electrons can hardly be squeezed thr…
3D strain in 2D materials: Experimental test in unsupported monolayer graphene under pressure
Y. W. Sun, W. Liu, I. Hernandez +4
Previous Raman measurements on supported graphene under high pressure reported a very different shift rate of in-plane phonon frequency of graphene (16 cmGPa) from gr…
The Effect of Humidity on the Interlayer Interaction of Bi-layer Graphene
A. Qadir, Y. W. Sun, W. Liu +4
The lubricating ability of graphite largely depends on the environmental humidity, essentially the amount of water in between its layers. In general, intercalated molecules in laye…
Quantitative explanation of the reported values of the Hall-Petch parameter
Y. Li, A. J. Bushby, D. J. Dunstan
The Hall-Petch effect has been described for the past sixty years as a dependence of the strength of polycrystalline metals on the inverse square-root of grain size d. The value of…
Graphite Under Compression: Shift of Layer Breathing and Shear Modes Frequencies with Interlayer Spacing
Y. W. Sun, D. Holec, Y. Xu +1
Layered materials have huge potential in various applications due to their extraordinary properties. To determine the interlayer interaction (or equivalently the layer spacing unde…
The Hall-Petch effect as a manifestation of the general size effect
Yuan Li, Andy J. Bushby, David J. Dunstan
The experimental evidence for the Hall-Petch dependence of strength on the inverse square-root of grain size is reviewed critically. Both the classic data and more recent results a…
The Significance of Bundling Effects on Carbon Nanotubes' Response to Hydrostatic Compression
Y. W. Sun, I. Hernandez, J. Gonzalez +5
The study of the G-mode pressure coefficients of carbon nanotubes, reflecting the stiff sp2 bond pressure dependence, is essential to the understanding of their extraordinary mecha…
Design rules for dislocation filters
Tom Ward, Ana M. Sánchez, Mingchu Tang +4
The efficacy of strained layer threading dislocation filter structures in single crystal epitaxial layers is evaluated using numerical modeling for (001) face-centred cubic materia…
Analysis of the inverse square-root size effect in the plasticity of metals
T. T. Zhu, B. Ehrler, X. D. Hou +2
Small-scale mechanical behaviour shows significant departures from classical elastic-plastic theory. In a remarkable number of instances, the strength of a material appears to scal…