A5100623072- Diamond and Carbon-based Materials Research
- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Advanced Nanomaterials in Catalysis
- Advanced ceramic materials synthesis
- Advanced materials and composites
- Advanced Surface Polishing Techniques
- Advanced biosensing and bioanalysis techniques
- Advanced machining processes and optimization
- Tunneling and Rock Mechanics
- Dielectric properties of ceramics
- Astronomical Observations and Instrumentation
- Electrochemical sensors and biosensors
- Metal and Thin Film Mechanics
- Multiferroics and related materials
- Geophysics and Gravity Measurements
- Inertial Sensor and Navigation
- Acoustic Wave Resonator Technologies
- Carbon and Quantum Dots Applications
- Thermal properties of materials
- Aluminum Alloys Composites Properties
- Calibration and Measurement Techniques
- Nanocluster Synthesis and Applications
- Additive Manufacturing and 3D Printing Technologies
- History and Developments in Astronomy
Henan University of Technology
2012-2025
ShanghaiTech University
2024
Southwest Jiaotong University
2024
Changsha University of Science and Technology
2023
Shandong University of Technology
2021-2023
Chongqing University of Science and Technology
2018
Shanghai Astronomical Observatory
1988-1993
In large-diameter shield tunnels, applying the double-layer lining structure can improve load-bearing properties and maintain stability of segmental lining. The secondary thickness is a key parameter in design double structure, which worth being explored. Based on an actual tunnel, loading model tests are carried out to investigate effect mechanical behaviours structure. test results show that within range thicknesses discussed, limit increases with growing thickness. As passive support,...
The quantum yield and fluorescence properties of carbon dots are key issues for environmental detection. In this study, nitrogen–sulfur-doped (N,S-CDs) were prepared hydrothermally by adding thiourea to provide the N source. By adjusting ratio citric acid (CA) (N,S) anhydrous ethanol, blue fluorescent doped with a up 53.80% obtained. particle morphology crystalline organization N,S-CDs analyzed using transmission electron microscopy (TEM) X-ray diffraction (XRD). Fourier transform infrared...
Diamond/copper composites with high thermal conductivity and a variable expansion coefficient are promising materials for management applications. However, achieving the desired of composite material is difficult due to detachment or weak bonding between diamond Cu. The interfacial properties diamond/Cu can be improved using metal matrix alloying methods. In this study, we investigate effects elements (B, Cr, Hf, Mo, Nb, Si, Ti, V, Zr) on first-principles calculations. Results showed that...
Abstract Ultra-smooth and low-damage processing of single-crystalline 4 H-SiC has become a research focus as substrate for third-generation semiconductor wafers. However, the high hardness strong chemical inertia significantly affect chemical-mechanical polishing (CMP) efficiency accuracy. In this study, process optimization experiments are conducted based on grey relational analysis method to achieve low surface roughness (Ra) material removal rate (MRR). First, MRR Ra Si (0001) obtained by...
Concurrently achieving high growth rate and quality in single-crystal diamonds (SCDs) is significantly challenging. The of SCDs synthesized by microwave plasma chemical vapor deposition (MPCVD) was enhanced introducing N2 into the typical CH4-H2 gas mixtures. impact nitrogen vacancy (NV) center concentration on rate, surface morphology, lattice binding structure investigated. were characterized through Raman spectroscopy, photoluminescence (PL) X-ray photoelectron spectroscopy. It found that...
Molecular hydrogen and spiltover storages on five two-dimensional (2D) covalent-organic frameworks (COFs) (PPy-COF, TP-COF, BTP-COF, COF-18 A, HHTP-DPB COF) are investigated using the grand canonical Monte Carlo (GCMC) simulations density functional theory (DFT), respectively. The GCMC simulated results show that COF has best performance for storage, followed by PPy-COF. However, their adsorption amounts at room temperature all too low to meet uptake target set US Department of Energy...
Although BiFeO3 (BFO) has attracted great attention due to its special physical properties as a typical single phase multiferroic material, the application is limited formation of impurities, defects and so forth. Herein, we report improved Bi0.78La0.08Sm0.14Fe0.85Ti0.15O3 (BLSFTO) ceramics by combination co-doping sintering schedule. BLSFTO were prepared using conventional solid state reaction method effect time (2, 5, 10, 20 30 h) on structural, dielectric was investigated systematically....