A5100322330- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Advanced materials and composites
- Landslides and related hazards
- Aluminum Alloys Composites Properties
- High-Temperature Coating Behaviors
- Geomechanics and Mining Engineering
- Forest Biomass Utilization and Management
- Metallurgy and Material Forming
- Adhesion, Friction, and Surface Interactions
- Mechanical stress and fatigue analysis
- Rock Mechanics and Modeling
- Civil and Geotechnical Engineering Research
- Hydrocarbon exploration and reservoir analysis
- Additive Manufacturing and 3D Printing Technologies
- Seismic Imaging and Inversion Techniques
- Laser Material Processing Techniques
- Gear and Bearing Dynamics Analysis
- Environmental Impact and Sustainability
- Mechanical Failure Analysis and Simulation
- earthquake and tectonic studies
- Grouting, Rheology, and Soil Mechanics
- Tribology and Wear Analysis
- Geoscience and Mining Technology
- Phase-change materials and chalcogenides
Beijing Normal University
2022-2024
Nanjing University of Science and Technology
2024
Xi'an Jiaotong University
2022
Institut National des Sciences Appliquées de Lyon
2022
Harbin Medical University
2022
Central South University
2022
Northwestern Polytechnical University
2021
Chongqing University of Science and Technology
2021
Chongqing University of Technology
2021
Wuhan Institute of Technology
2020
High hardness improves the material’s load-bearing capacity, resulting in enhancement of tribological properties. However, high is difficult to achieve for TiAlN coating due transformation close-packed structure from cubic hexagonal and increase grain size when Al content high. In present study, ultrahard coatings (hardness > 40 GPa) are successfully developed by filtered cathodic vacuum arc technology study effect nitrogen flux rate on behaviors. The highest 46.39 GPa obtained tuning...
In order to explore the specimen failure characteristics during rock‐burst under different gradient stress conditions, in this paper, a novel experimental technique was proposed; common series of tests two paths were conducted on rock similar material specimens using true‐triaxial and hydraulic‐pneumatic combined test apparatus. And plaster used as material. process, several debris with area sizes 100 mm 2 collected, fractal dimensions typical detrital section crystal contours analyzed...
The leakage mechanism of the clamp connector for submarine pipeline is investigated.The contact seal a regarded as half-cylinder squeezing plane.Moreover, mean stress region used to calculate permeability, based on an observation length-dependent mechanic model and new fractal porous media model.The analysis yields insight into effects surface parameters when rises within yield limit.Compared with experiment results, prediction this shows well consistency in trend.
The effects of a CoCr based non-magnetic interlayer on thermal stability and recording characteristics were investigated with two series thin film media without the at magnetic layer thickness ranging from 75 to 200 /spl Aring/. It was found that buffers Cr diffusing into during deposition results much thinner initial layer. Due reduced layer, show more thermally stable behavior as decreases less than 100 As result affected by fluctuation, have 10 dB higher SNR 270 kfci 3 times lower...
Five wells of L oilfield in Bohai bay basin have drilled 10 - 15 meters thick oil layer the Paleogene delta. Due to deep-buried reservoir and poor seismic performance, it is difficult identify genesis, predict distribution. By analyzing core, well logging data, a stable mudstone section selected as correlation marker establish stratigraphic framework. The paleogeomorphology reconstructed after decompaction correction paleobathymetric analysis. Based on differences paleotopography sedimentary...
Super-hard and wear-resistant (TiAlCrN)C coatings were prepared by filtered cathodic vacuum arc deposition method under the conditions of a fixed N2 flow rate (30 sccm) an C2H2 0, 5, 10, 30 50 sccm. The effect on phase structure, mechanical properties, friction properties corrosion resistance coating was studied systematically. C atoms exist in form replacing N coating, making structure more refined transforming from single face-centered cubic (fcc) to amorphous state. When Fc = 10 sccm,...
Aiming at the deformation and failure of mining roadway in Chahasu coal mine, based on engineering mechanics theory soft rock loosen circle theory, loose zone surrounding was observed site reason structure instability were analyzed, a composite support system is developed order to combines advantage four methods, achieve partition cooperative supporting coupling strengthening effect. The results show that: influenced unavoidably with limitation its own condition led expansive destructive...
Abstract Objective: To compare the removal of smear layer from root canal wall with different irrigation solutions in vitro and evaluate penetration sealers into dentinal tubules their effects on mechanical properties dentin.Methods: 69 human single-rooted premolars 36 molars were selected randomly divided 5 experimental groups negative control group according to regimens. 5.25%NaClO (A),6%MCJ (B),17%EDTA (C),5.25%NaClO + 17%EDTA (D),6%MCJ (E) (Distilled water) (DW). Each for scanning...
In order to cope with corrosion and friction problems in complex environments, protective coatings single component are gradually replaced by multi-component good comprehensive performance. this work, (TiAlCrSi)C coating ultra-low coefficient of (COF < 0.1) resistance was prepared filtered cathodic vacuum arc regulated C2H2 gas flow. The results show that increasing the flow rate increases amorphization level reduces roughness. formed carbides sp2-C have extremely low COF wear properties....
Abstract The laser transmission in the polymer powder bed includes three parts during selective sintering (SLS) process: absorption, reflection, and scattering. Because of granular nature powder, scattering phenomena causes photons isotropic travel medium, which affects directly photons’ distribution bed. In this paper, we numerically simulate heat source traveling a bed, as SLS process, by introducing Mie theory with Monte-Carlo method, instead Bear-Lambert Law, to correctly represent...