Quanshui Zheng
Tsinghua University
211 Papers
774 Citations
Quanshui Zheng is an academic researcher from Tsinghua University. The author has contributed to research in topics: Carbon nanotube & Superlubricity. The author has an hindex of 48, co-authored 205 publications. Previous affiliations of Quanshui Zheng include Nanjing University & Monash University.
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Papers
Observation of normal-force-independent superlubricity in mesoscopic graphite contacts
Cuong Cao Vu,Cuong Cao Vu,Shou-Mo Zhang,Michael Urbakh,Qunyang Li,Qi-Chang He,Qi-Chang He,Quanshui Zheng +7 more
TL;DR: In this article, the dependence of friction forces on normal load in incommensurate micrometer-size contacts between atomically smooth single-crystal graphite surfaces under ambient conditions was investigated.
79
A Quantitative study of minimum sizes of representative volume elements of cubic polycrystals—numerical experiments
Zhiyong Ren,Quanshui Zheng +1 more
TL;DR: In this paper, a new and convenient definition of the minimum representative volume element (RVE) size is introduced, and more than 500 kinds of cubic polycrystalline material in the planar stress state are numerically tested.
78
Origin of Friction in Superlubric Graphite Contacts.
Cangyu Qu,Kunqi Wang,Jin Wang,Yujie Gongyang,Robert W. Carpick,Michael Urbakh,Quanshui Zheng +6 more
TL;DR: The results obtained from nanoscale to microscale incommensurate contacts of graphite under ambient conditions verify that the average frictional contribution of an inner atom is no more than 10^{-4} that of an atom at the edge, and the total friction force is dominated by friction between the contact edges for contacts up to 10 μm in lateral size.
73
Strain Engineering Modulates Graphene Interlayer Friction by Moiré Pattern Evolution
TL;DR: In this superlubric system friction can be reduced non-monotonically by applying strain, which differs from previously reported results on various 2D materials and suggests that strain engineering could be particularly efficient for friction modification with large contacts.
68
Condensation droplet sieve
TL;DR: In this paper , a solution called condensation droplet sieve, through fabricating micro-scale thin-walled lattice structures coated with a superhydrophobic layer, was presented, where growing droplets were observed to jump off this surface once becoming slightly larger than the lattices.