A5100694865- Diamond and Carbon-based Materials Research
- Force Microscopy Techniques and Applications
- Advanced Surface Polishing Techniques
- Metal and Thin Film Mechanics
- Lubricants and Their Additives
- Advanced machining processes and optimization
- X-ray Diffraction in Crystallography
- Tribology and Wear Analysis
- Mechanical and Optical Resonators
- Semiconductor materials and devices
- Adhesion, Friction, and Surface Interactions
- Crystallization and Solubility Studies
- Nanowire Synthesis and Applications
- Astro and Planetary Science
- Catalytic Processes in Materials Science
- Astrophysics and Star Formation Studies
- Surface Modification and Superhydrophobicity
- Graphene research and applications
- Nanomaterials for catalytic reactions
- Metal Alloys Wear and Properties
- Recycled Aggregate Concrete Performance
- Stellar, planetary, and galactic studies
- Advanced Nanomaterials in Catalysis
- Advanced ceramic materials synthesis
- Micro and Nano Robotics
Chengdu University of Traditional Chinese Medicine
2025
Hubei University of Technology
2022-2024
Southwest Jiaotong University
2015-2024
Wuhan University of Technology
2023-2024
Advanced Research Center for Nanolithography (Netherlands)
2021-2023
University of Amsterdam
2022-2023
Xi'an Jiaotong University
2023
Beijing Normal University
2020-2021
Huazhong University of Science and Technology
1995-2021
Nanjing Tech University
2019-2021
The friction and wear behavior of materials are not intrinsic properties, but extrinsic properties; in other words, they can drastically vary depending on test environmental conditions. In ambient air, humidity is one such parameter. This paper reviews the effects macro- nano-scale various types materials. included this review graphite graphene, diamond-like carbon (DLC) films, ultrananocrystalline diamond (UNCD), transition metal dichalcogenides (TMDs), hexagonal boron nitride (h-BN), boric...
Although π–π interactions have been studied for several decades, the quantification of strength in a macromolecule remains big challenge. Herein, we utilize single-molecule atomic force microscopy and steered molecular dynamics simulations to study polystyrene (PS). It is found that high vacuum, single-chain mechanics PS differs largely from polyethylene (PE). Accordingly, intrachain estimated be 0.7 kcal/(mol stack), which much lower than small-molecule system (benzene dimer, 2–3 stack))....
Mechanical activation in mechanical removal of GaN using diamond tip and mechanochemical Al2O3 are described by the Archard equation mechanically assisted Arrhenius-type kinetic model, respectively. Evident material-removal under elastic contact occurs with assistance interfacial reactions. By analyzing reactions model Hertzian mechanics, critical volume barrier determined semiquantitatively. The originating from chemically active counter-surface facilitates atomic attrition altering energy...
Most inorganic material surfaces exposed to ambient air can adsorb water, and hydrogen bonding interactions among adsorbed water molecules vary depending on, not only intrinsic properties of surfaces, but also extrinsic working conditions. When dimensions solid objects shrink micro- nano-scales, the ratio surface area volume increases greatly contribution condensation on interfacial forces, such as adhesion (Fa) friction (Ft), becomes significant. This paper reviews structural evolution...
With compelling virtues of a large specific surface area, abundant active sites, and fast interfacial transport, nanomaterials have been demonstrated to be indispensable tools for water remediation applications. Accordingly, micro/nanomotors made by would also benefit from these properties. Though tuning the architecture on demand becomes hot topic in field nanomaterials, there are still limited reports design architectures chemically driven tubular micro/nanomachines. Here, unique composed...
Abstract Mechanochemical reactions of the GaN-Al 2 O 3 interface offer a novel principle for scientific and technological merits in micro-/nano-scale ultra-precision surface machining. In this work, mechanochemical on Ga- N-faced GaN surfaces rubbed by Al nanoasperity as function environmental humidity were investigated. Experimental results indicate that N-face exhibits much stronger removal over relative range 20%–80% than Ga-face. Increasing water molecules conditions significantly...
The low wear resistance of macroscale graphene coatings does not match the ultrahigh mechanical strength and chemical inertness layer itself; however, mechanism responsible for this issue at stress is still unclear. Here, we demonstrate that susceptibility monolayer to its atomic step edges governed by mechanochemistry frictional interfaces. mechanochemical reactions activated chemically active SiO2 microspheres result in attrition rather than damage such as surface fracture folding inert...
Abstract The effect of crystal plane orientation on tribochemical removal monocrystalline silicon was investigated using an atomic force microscope. Experimental results indicated that the by SiO 2 microsphere presented strong crystallography-induced anisotropy. Further analysis suggested such anisotropic not dependent crystallography-dependent surface mechanical properties (i.e., hardness and elastic modulus), but mainly attributed to various planar density interplanar spacing in different...
The scratching-induced material removal behavior and mechanism of single-crystal AlN using single diamond abrasive were studied at atomic level through molecular dynamics simulation nanowear test. A minimum thickness monolayer is achieved on Al-terminated AlN(0001) surface in simulation. Dislocations stacking fault constitute the main subsurface lattice damage demonstrate positive correlations with scratching depth. Both simulated experimental results suggest that plasticity-dominated can be...
Background: The purpose of this study is to examine workplace violence (WPV) toward primary care physicians (PCPs), including prevalence, associated factors, impacts, and response WPV in Chengdu, China. Methods: We used an online cross-sectional design collect data from October November 2022 with a structured self-administered questionnaire purposive sample 568 PCPs Chengdu city. Results: Among the 490 valid questionnaires, 44.3% respondents reported at least encountered 1 type preceding...