A5100367004- Titanium Alloys Microstructure and Properties
- Metal and Thin Film Mechanics
- Advanced materials and composites
- High voltage insulation and dielectric phenomena
- Supercapacitor Materials and Fabrication
- Transition Metal Oxide Nanomaterials
- Crystallography and molecular interactions
- Robotic Path Planning Algorithms
- Advanced Vision and Imaging
- Guidance and Control Systems
- Ionic liquids properties and applications
- ZnO doping and properties
- Optical measurement and interference techniques
- Image and Video Stabilization
- 3D Surveying and Cultural Heritage
- Chemical Reactions and Mechanisms
- High-Velocity Impact and Material Behavior
- Intermetallics and Advanced Alloy Properties
- Advanced Surface Polishing Techniques
- Power Transformer Diagnostics and Insulation
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Additive Manufacturing Materials and Processes
- Gas Sensing Nanomaterials and Sensors
- Microstructure and mechanical properties
- Distributed Control Multi-Agent Systems
Beijing Institute of Technology
2007-2025
National Center for Nanoscience and Technology
2021
By mimicking the layered structure of nacre, we successfully fabricated a nano-laminar coating on high-voltage insulators. The is demonstrated to achieve higher flashover strength by effectively dissipating surface charge under dc stress.
A near-α titanium alloy was fabricated using spark plasma sintering (SPS) to investigate the effects of temperature on its relative density, microstructure, and mechanical properties. The density increased significantly with temperature, reaching 94.56%, 99.91%, 99.99% at 850 °C, 900 1000 respectively. At contained numerous pores, leading low while full densification achieved, resulting in a bimodal microstructure comprising 20% primary α phase (average size: 2.74 μm) 80% transformed β...
Abstract The oil‐pressboard insulation on the valve side of converter transformer withstands pulsating square wave voltage. voltage contains lots DC components and high‐order harmonics, which is likely to cause failures. partial discharge space charge experiments oil‐impregnated pressboard under superimposed harmonic are conducted study effects frequency accumulation explore correlation mechanism dynamic behaviour discharge. Firstly, it found that promotes generation, but component...
Heterogeneous structure is practical to improve the strain hardening abilities of materials due effect hetero-deformation induced hardening, especially composites. In this study, a series TiB/TC4 composites with pseudo core–shell bimodal grain distribution were fabricated via two-step ball-milling and spark plasma sintering. The synthesized have coarse lamella α-Ti grains average 23.6 μm in diameter surrounded by fine 4.2 μm, TiB distributed on primary TC4 surface areas. 0.4 wt% TiB2...
Different ZnCo2O4 micro-materials had been synthesized using surfactant (CTAB) in the solution of mixed solvents. Using CTAB as morphology-controlling agent, different morphologies are obtained successfully. The concentration reactants and dosage significant effects on morphology products. micro-cubes, micro-plates, micro-particles were efficiently obtained, respectively, with careful control fundamental experimental parameters including CTAB. X-ray powder diffraction (XRD) scanning electron...
This paper considers a pursuit-evasion game involving multiple pursuers and single superior evader with nonholonomic constraints. A novel cooperative pursuit strategy is proposed to capture fast while minimizing the generation of escape gaps. First, based on theory Apollonius circles, initial position distribution required ensure proposed. Second, heading angle evader, are assigned tasks divide them into one hunter surrounders. Meanwhile, surrounders again divided two groups assist in...
This paper presents a new pose measurement method of microminiature parts that is capable transforming one dimension (1D) contour size obtained by optical micrometer to three (3D) data with six parameters for microassembly. Pose the most important processes parts' alignment and insertion in During past few years, researchers have developed their microassembly systems focusing on visual identification obtain two or no more than parameters. Scanning electronic microscope (SEM), microscope,...
Abstract In this paper, Ti-6Al-4V alloy were successfully fabricated using a Spark Plasma Sintering (SPS), thermal deformation and heat treatment process. SPS sintering is divided into two steps: The first step low-temperature molding at 600°C 300 MPa, the second 800°C, with of 70%. effects solution aging process temperatures above below β transformation point on microstructure mechanical properties are investigated. study found that better after (900°C, 30 min+ water quenching +550°C, 4 h).
The title compound, C10H18N+·N3−, was obtained by the reaction of adamantadine chloride and NaN3. Within azide anion, N—N bond distances are 1.164 (2) 1.153 Å. Each protonated amantadine cation links with three anions via N—H⋯N hydrogen bonding, forming a supramolecular structure.