A5027744220- Advanced materials and composites
- Tunneling and Rock Mechanics
- Dielectric properties of ceramics
- ZnO doping and properties
- Ferroelectric and Piezoelectric Materials
- Intermetallics and Advanced Alloy Properties
- Diamond and Carbon-based Materials Research
- Electronic Packaging and Soldering Technologies
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Advanced Surface Polishing Techniques
- Aluminum Alloy Microstructure Properties
- Advanced ceramic materials synthesis
- Advanced machining processes and optimization
- Microwave Dielectric Ceramics Synthesis
- Analytical Chemistry and Sensors
- Thin-Film Transistor Technologies
- Multiferroics and related materials
- Laser and Thermal Forming Techniques
- 3D IC and TSV technologies
- Transportation Safety and Impact Analysis
- High Entropy Alloys Studies
- Smart Materials for Construction
- Geotechnical Engineering and Soil Stabilization
- Advanced Welding Techniques Analysis
Northeastern University
2024-2025
Nanjing University of Aeronautics and Astronautics
2024
State Key Laboratory of Synthetical Automation for Process Industries
2024
State Key Laboratory of Advanced Brazing Filler Metals and Technology
2022-2023
Zhengzhou Institute of Machinery
2022-2023
University of Nottingham Ningbo China
2022
State Research Institute of Mechanical Engineering
2021
Tsinghua University
2007
This study aims to provide a new process improve the welding performance of steel/magnesium dissimilar materials, using an ultrasonic-laser welding-brazing method joints AZ31B magnesium alloy on 304 stainless steel. The relationship between laser power, Ni-plating and element distribution, microstructure, mechanical properties welded was studied, formation mechanism interface zone joint analyzed. research results indicate that best effect is achieved when power 2000 W, minimum wetting angle...
Mg-doped CaCu3−xMgxTi4O12 (x=0, 0.05, 0.1, 0.15, 0.2, at.%) thin films were prepared by a modified sol−gel method. A comparative study on the microstructure and electrical properties of CaCu3Ti4O12 (CCTO) was carried out. The grain sizes CCTO smaller in comparison to undoped films. Furthermore, compared films, obtained higher dielectric constant as well excellent frequency stability. Meanwhile, Mg doping could reduce loss range 104−106 Hz. results showed that had better characteristics with...
A Babbitt alloy SnSb11Cu6 with 0-2.0 wt.% Co was synthesized using the induction melting process. This study examined effect of cobalt (Co) on microstructure, tensile properties, compressive Brinell hardness, and wear properties optical microscopy (OM), scanning electron (SEM), energy-dispersive X-ray spectroscopy (EDS), diffraction (XRD), a universal testing machine, hardness tester, machine. The results indicate that optimal quantity can enhance microstructure promote uniformity, presence
In this paper, (M 0.5 Ta ) 0.05 Ti 0.95 O 2 = Al, Ga, In) ceramic materials were successfully prepared by Flash Sintering (FS) under an electric field of 550 V cm −1 at 1200 °C for 18 min. The influences different ionic radius on flash sintering behavior, crystal structure, microstructure and dielectric properties TiO -based colossal permittivity (CP) ceramics systematically investigated. FS can reduce the temperature 200 shorten time more than 12 times. results show that all samples pure...
Abstract In this study, the use of laser quenching was explored as a method surface strengthening for 40Cr steel utilized in machine tool guideways. The impact various process parameters, including power, scanning speed, and spot radius, on hardness depth quenched layer evaluated. results indicated that optimal parameters were power 2000 W, speed 20 mm/s, radius 3 mm, which resulted maximum 889 HV, an average 764 0.7 mm. application through multiple passes shown to further improve material...
Acetic anhydride is a crucial chemical composition for heroin synthesis and also hazardous volatile organic compound. Hence, the development of reliable sensitive sensor its detection essential. In this study, ZnO/La <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> nanoparticles were successfully synthesized via simple one-step hydrothermal process to detect acetic anhydride. The...
Polycrystalline nickel (99.999% purity) cold-rolled to a reduction of 96% has been given two-step annealing treatment consisting pre-annealing at 180 °C or 220 for 2 hours, followed by final 300 10 minutes. The changes in microstructure and texture during have using electron backscatter diffraction orientation measurements taken on the longitudinal section samples. results suggest that low temperature can enhance formation recrystallized grains cube orientation. Based an analysis...
The first-principles calculations by CASTEP program based on the density functional theory is applied to calculate cohesive energy, enthalpy of formation, elastic constant, states and Mulliken population Ag 3 Sn、AgZn 5 Zn 8 . Furthermore, properties, bonding characteristics, intrinsic connections different phases are investigated. results show that have stability structural, plasticity characteristics degrees anisotropy; Sn most stable has strongest alloying ability best plasticity. AgZn...
Taking steel-plastic composite reinforced band (CAT) and gravelly soil as the test materials, pullout tests of in with different water contents have been carried out by laminated shear instrument. The interface friction characteristics between are studied, influences content on interaction also discussed. Results show that (1) extraction is a gradual process. anchor end began to move firstly because extensibility belt itself. As gradually transfer backward by, free start onward, then...
The use of soldering based on metallurgical bonding, as opposed to conventional rubber sealing, is capable achieving the firm sealing stainless-steel subway car bodies, though corrosion resistance such joints has rarely been investigated. In this study, two typical solders were selected and applied stainless steel, their properties As indicated by experimental results, types solder exhibited favorable wetting spreading plates, successfully achieved connections between sheets. comparison with...