A5041336055- Welding Techniques and Residual Stresses
- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Advanced Welding Techniques Analysis
- Non-Destructive Testing Techniques
- Advanced Sensor and Energy Harvesting Materials
- Microstructure and mechanical properties
- Microfluidic and Capillary Electrophoresis Applications
- Fatigue and fracture mechanics
- Electronic Packaging and Soldering Technologies
- Particle Dynamics in Fluid Flows
- Innovative Microfluidic and Catalytic Techniques Innovation
- Aluminum Alloys Composites Properties
- Metal Forming Simulation Techniques
- Electromagnetic Effects on Materials
- Aluminum Alloy Microstructure Properties
- 3D IC and TSV technologies
- Chalcogenide Semiconductor Thin Films
- Advanced Materials and Mechanics
- Nuclear Physics and Applications
- Nuclear reactor physics and engineering
- Copper-based nanomaterials and applications
- Mechatronics Education and Applications
- Fluid Dynamics and Mixing
- Fluid Dynamics and Heat Transfer
Tsinghua University
2011-2024
Center for Advanced Energy Studies
2023
University of Idaho
2023
Aerospace Research Institute of Materials and Processing Technology
2023
State Key Laboratory of Tribology
2021-2022
KTH Royal Institute of Technology
2012
Photoresponsive smart actuators based on carbon materials are attracting increasing attention. However, the low content of currently limits development material actuators. In this work, we designed and prepared a multifunctional bilayer composite actuator with controllable structures high photothermal conversion efficiency. The consists graphene/polydimethylsiloxane (PDMS) layer PDMS layer. With an ultrahigh graphene mass fraction (30%), exhibits good hydrophobicity, unexpectedly performance...
We present dielectric function ɛ = ɛ1 + iɛ2 spectra and critical-point energies of Cu2ZnSnSe4 determined by spectroscopic ellipsometry from 0.5 to 9.0 eV. reduce artifacts surface overlayers the maximum extent possible performing chemical-mechanical polishing wet-chemical etching a thin film. Ellipsometric data are analyzed multilayer model extracted. The exhibit numerous spectral features associated with critical points, whose obtained fitting standard lineshapes second energy derivatives...
Abstract Mechanically close‐to‐bone carbon‐fiber‐reinforced poly‐ether–ether–ketone (CFR‐PEEK)‐based orthopedic implants are rising to compete with metal implants, due their X‐ray transparency, superior biocompatibility, and body‐environment stability. While real‐time strain assessment of is crucial for the postsurgery study fracture union failure prostheses, integrating precise durable sensors on remains a great challenge. Herein, laser direct‐write technique presented pattern conductive...
Accurately predicting the mechanical properties of graphene-reinforced metal matrix composites is utmost importance due to its critical role in design and utilization nanocomposite materials. The conventional approach employing molecular dynamics (MD) simulations for this purpose faces a substantial increase computational costs when considering combined effects multiple factors. In contrast, machine learning (ML) models offer rapid efficient alternative by swiftly comprehending material...
A new type of three-dimensional (3D) serpentine microchannel reactor was fabricated by thermally bonding stacked polyimide films to greatly improve the mixing efficiency transversal vortices at low Reynolds number (Re). The effects Re, flow ratio R, and channel width on performance were investigated using Villermaux–Dushman method, in which segregation index XS utilized quantify efficiency. results showed that decreased with increasing decreasing reducing width. Then, a computational fluid...
Plates (37 mm thick) of 6005A-T6 aluminum alloy were butt joined by a single-sided and double-sided friction stir welding (FSW). The 3D residual stresses in the joints determined using neutron diffraction. microstructures characterized transmission electron microscope (TEM) backscatter diffraction (EBSD). In FSW specimen, there acceptable mechanical properties with tensile strength 74.4% base metal (BM) low peak magnitudes approximately 37.5% yield BM achieved. hardness is related to grain...
The Ti–5Al–2Sn–2Zr–4Mo–4Cr (Ti17) titanium alloy is the main material used in manufacturing blades and disks of aero engines, it always jointed with different microstructures for design constraints. In this work, residual stresses linear friction welding β Ti17 α + are measured by contour method X-ray diffraction method. welding-induced tensions were found to be greater on side than that side, had an obvious reduction weld centre. After post heat treatment (PWHT) 630°C 3 h, all relax a very...
Evolution of the valence-band structure at gradually increasing copper content has been analysed by x-ray photoelectron spectroscopy (XPS) in In2Se3, CuIn5Se8, CuIn3Se5, and CuInSe2 single crystals. A comparison these spectra with calculated total angular-momentum resolved density-of-states (DOS) revealed main trends this evolution. The formation theoretically predicted gap between bonding non-bonding states observed both experimental XPS theoretical DOS.
The catalytic reduction of carbon dioxide (CO2) to produce methane (CH4) as a hydrocarbon fuel has attracted extensive attention for renewable energy. In this study, we investigate ultrathin carbon-deficient molybdenum carbide (MoC0.66) catalyst CO2 capture and conversion. Our findings indicate that MoC0.66 possesses remarkable activity hydrogenation CH4. Interestingly, unlike conventional catalysts, the limiting step is determined by release *OH species during reaction (CO2RR). Increasing...
ABSTRACTHigh-speed train brake discs face severe service conditions and subsequently risk of material failure during emergency braking. Thermal fatigue cracking is a major concern leading to catastrophic disc regarded as primary bottleneck in rapid rail transportation. Our proposed work establishes numerical prediction model estimate thermal crack initiation propagation low-alloy steel. We used modified Cockcroft-Latham criterion property tests determine the critical value. Through...