A5077272109- Microstructure and mechanical properties
- Metal and Thin Film Mechanics
- Structural Analysis and Optimization
- Advanced Materials and Mechanics
- Topological Materials and Phenomena
- Radiation Detection and Scintillator Technologies
- Force Microscopy Techniques and Applications
- Aluminum Alloys Composites Properties
- Nuclear Physics and Applications
- 2D Materials and Applications
- Advanced Nanomaterials in Catalysis
- Boron and Carbon Nanomaterials Research
- Nanoporous metals and alloys
- Electrocatalysts for Energy Conversion
- Copper Interconnects and Reliability
- Cellular Mechanics and Interactions
- Luminescence and Fluorescent Materials
- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Quantum Dots Synthesis And Properties
- Diamond and Carbon-based Materials Research
- High Entropy Alloys Studies
- Gait Recognition and Analysis
- Chemical Thermodynamics and Molecular Structure
- Ammonia Synthesis and Nitrogen Reduction
Harbin Institute of Technology
2024
Chongqing University
2023
Georgia Institute of Technology
2012-2022
Southern University of Science and Technology
2020
Tsinghua University
2020
South China Normal University
2013-2019
Fudan University
2010
Grain boundaries (GBs) play an important role in the mechanical behavior of polycrystalline materials. Despite decades investigation, atomic-scale dynamic processes GB deformation remain elusive, particularly for GBs polycrystals, which are commonly asymmetric and general type. We conducted situ atomic-resolution study to reveal how sliding-dominant is accomplished at tilt platinum bicrystals. observed either direct sliding along or with atom transfer across boundary plane. The latter...
Metallic nanowires usually exhibit ultrahigh strength but low tensile ductility owing to their limited strain hardening capability. Here we study the unique behavior of five-fold twinned Ag by nanomechanical testing and atomistic modeling. In situ tests within a scanning electron microscope revealed strong nanowires. Molecular dynamics simulations showed that such was critically controlled twin boundaries pre-existing defects. Strain size dependent; thinner achieved more higher ductility....
Nanomaterials often surprise us with unexpected phenomena. Here, we report a discovery of the anti-twinning deformation, previously thought impossible, in nanoscale body-centered cubic (BCC) tungsten crystals. By conducting situ transmission electron microscopy nanomechanical testing, observed nucleation and growth anti-twins nanowires diameters less than about 20 nm. During anti-twinning, shear displacement 1/3〈111〉 occurs on every successive {112} plane, contrast to an opposite 1/6〈1¯1¯1¯〉...
This study focuses on the mechanical behavior and microstructure evolution of oxygen-free high conductivity copper in presence electropulse. The result shows tensile strength strain-to-failure decrease linearly with increase pulse frequency, fracture mode changes from ductile to brittle. With grain size increases, reduction cross section decreases firstly then increases. temperature due applying electropulse is considered as main reason for retardation property change mode. Copper sulfide...
Pulse-shape discrimination (PSD) is usually achieved using the different fast and slow decay components of inorganic scintillators, such as ${\mathrm{Ba}\mathrm{F}}_{2}$, $\mathrm{Cs}\mathrm{I}$:Tl, etc. However, ${\mathrm{La}\mathrm{Br}}_{3}$:$\mathrm{Ce}$ considered to not possess at room temperature, but has been proved have capability discriminating \ensuremath{\gamma} \ensuremath{\alpha} events digitizers. In this paper, ionization-density-dependent transport rate equations are used...
With the development of high-speed readout electronics, digital pulse shape discrimination (PSD) methods have attracted attention more researchers, especially in field high energy physics and neutron detection. How to choose a PSD algorithm corresponding data acquisition system (DAQ) naturally becomes critical problem settle down for detection designers. In this paper, relationship between classification performance different algorithms digitizers' sampling properties (including rate...