Controlling Macroscopic Friction through Interfacial Siloxane Bonding

L Peng, CC Hsu, C **ao, D Bonn, B Weber - Physical Review Letters, 2023 - APS
Controlling macroscopic friction is crucial for numerous natural and industrial applications,
ranging from forecasting earthquakes to miniaturizing semiconductor devices, but predicting …

Graphene Failure under MPa: Nanowear of Step Edges Initiated by Interfacial Mechanochemical Reactions

C Tang, Y Jiang, C Chen, C **ao, J Sun, L Qian… - Nano Letters, 2024 - ACS Publications
The low wear resistance of macroscale graphene coatings does not match the ultrahigh
mechanical strength and chemical inertness of the graphene layer itself; however, the wear …

The role of oxygen in mechanochemical wear of graphene

W Yan, Y Jiang, L Chen, C Tang, J Sun, Y Liu, J Qin… - Carbon, 2024 - Elsevier
As a protective coating with wide applications due to its outstanding stiffness and chemical
inert, graphene often undergoes significantly local stress and chemical etching in practical …

C–C bond rupture initiated graphitization achieves highly efficient diamond polishing

N Liu, L Lei, H Lu, H Jiang, Y Zhang, J **ao… - International Journal of …, 2025 - Elsevier
Diamond is the ultimate semiconductor for power devices that operate at high-power, high-
temperature, and high-frequency conditions. However, diamond polishing is challenging …

Ga-driven mechanochemical reactions at GaAs/SiO2 Interfaces: Crystallographic anisotropy dependence and insights from DFT calculations

C **ao, H Peng, J Gao, Y Jiang, YY Lu, Y Wang, J Liu… - Wear, 2025 - Elsevier
In this study, nanoscale wear tests were conducted on GaAs surfaces with diverse
crystallographic orientations under varied relative humidity conditions, using atomic force …

Crystallographic anisotropy-dependent mechanochemical removal of GaAs: Nanoasperity experiments and atomistic simulations

J Gao, H Zhou, Y Lu, H Zhang, J Sun, Y Wang… - Tribology …, 2025 - Elsevier
In this paper, the nanoasperity wear tests on GaAs surfaces with different crystallographic
orientations against SiO 2 microsphere were performed using AFM. The removal behavior …

Atomic-scale insights into degradation mechanisms of lithium-based grease at high temperatures

G Tang, Z Liu, C Qin, Y Pan, Z Liang, F Su - Surfaces and Interfaces, 2025 - Elsevier
Lithium-based grease is extensively used as a lubricant for various mechanical components
such as bearings and gears in offshore wind turbines. Despite its widespread use, under …

How Do Substrates Affect the Friction on Graphene at the Nanoscale?

H Feng, Z Cheng, D Long, T Yang, Z Lu, Q He - Lubricants, 2023 - mdpi.com
Substrates supporting two-dimensional materials are omnipresent in micro/nano
electromechanical systems. Moreover, substrates are indispensable to all nanotribological …