83 Result(s)
within
**bin Guo
English
Characterization and Evaluation of Materials
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Article
Magnetic interactions and magnetoimpedance effect in FINEMET/SiO2/FePt composite ribbons
Giant Magnetoimpedance (GMI) is attracting attention for its high sensitivity in the presence of an applied magnetic field. Although the GMI effect has been studied for many years, it is difficult to analyze t...
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Article
Inter-granular and Intra-granular Crack Behavior in Mg Bicrystal of [ \(1\overline{2 }10\) ] Symmetric Tilt Grain Boundary: LEFM Prediction and Atomic Simulation
The grain boundary (GB) influences crack propagation, and the intrinsic brittleness/ductility of GB may be related to the interfacial structures. This work examined the effects of [
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Article
Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst
A novel kind of self-assembled graphene quantum dots-Co3O4 (GQDs-Co3O4) nanocomposite was successfully manufactured through a hydrothermal approach and used as an extremely effectual oxygen evolution reaction (OE...
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Article
A new method for predicting dislocation emission of grain boundary in bicrystal Mg
Due to its high volume percentage, the grain boundary seriously influences the strength and plasticity of nanocrystal materials. Whereas, predicting the onset of plasticity from the equilibrium grain boundary ...
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Article
Study on the microstructure and mechanical properties of ZK60 magnesium alloy with submicron twins and precipitates obtained by room temperature multi-directional forging
The current study suggested that nano-scale twins in magnesium alloys can significantly affect the elastic limit, ultimate strength and corrosion performance. However, the complicated process of nano-scale twi...
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Article
Rupture Disc Monitoring Using Electro-mechanical Impedance (EMI): A Feasibility Study
Rupture disc is widely used in pressure vessels. To prevent catastrophic overpressure in pressure vessels, it is vital to replace the rupture disc before its premature failure. This paper presents a systematic...
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Article
Strong inhibition of boron dopant on IMC growth between electroplating Co(B) deposits and lead-free solders at 250 °C
This study investigated the interfacial reactions of Sn and Sn–3.0 wt.% Ag–0.5 wt.% Cu (SAC305) with electroplating Co(B) deposits of varying B contents (0.8 at.%–3.2 at.%) at 250 °C. The B content of the Co(B...
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Article
Mechanism of Ductility Enhancement of the Mg-8Gd-4Y-1Nd-0.5Si Alloy by Multi-Directional Forging Process before Extrusion
Noteworthy ductility Mg-8Gd-4Y-1Nd-0.5Si (wt.%) alloy with a strong non-basal texture was developed by 12 passes of multi-directional forging (MDF) combine with extrusion. The slip trace analysis indicated tha...
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Article
β-Cyclodextrin dinuclear copper supported on graphene/polypyrrole nanocomposites as an electrochemical sensor for enantioselectivity recognition of tryptophan enantiomers
Electrochemical chiral recognition has gained much of attention as an efficient method for enantiomeric recognition. Herein, a chiral sensing platform via β-cyclodextrin dinuclear copper (Cu-β-CD) as a chiral ...
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Article
Enhanced and Controllable Ferroelectric Photovoltaic Effects in Bi4Ti3O12/TiO2 Composite Films
Herein, Bi4Ti3O12(BIT)/TiO2 composite films have been successfully prepared on indium tin oxide (ITO) via the sol–gel method. The microstructures, physical characteristics, and photoelectric response as well as t...
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Article
Improvement of interface stability and anti-friction performance of anodized AA6082 alloys by adjusting the state of Mg before anodization
A change in the heat treatment state of aluminum matrix before anodization was used to change the state of Mg in this work. The effects of Mg on the interface structure of the film/substrate of anodized AA6082...
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Article
Synthesis of (Ti1−xWx)3SiC2 MAX phase solid solution and its high-temperature oxidation performance
In this study, (Ti1−xWx)3SiC2 (x = 0–0.3) MAX phase ceramics were prepared via a solid-phase reaction synthesis method. The phase and performance effects of W-do** Ti3SiC2 were investigated. The microstructure ...
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Article
Influence of Asymmetric Rolling Process and Thickness Reduction on the Microstructure and Mechanical Properties of the Al–Mg-Si Alloy
The influence of the asymmetric rolling process (ASR) and thickness reduction on the microstructure and mechanical properties of Al–Mg–Si alloys is studied. The specimens of the ASR and higher thickness reduct...
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Article
The Comparative Study of Reaction Mechanisms and Catalytic Performances of Cu–SSZ-13 and Fe–SSZ-13 for the NH3-SCR Reaction
The catalytic performances and mechanism differences of model catalysts Cu–SSZ-13 and Fe–SSZ-13 with similar metal content and Si/Al ratio were compared. In the NH3-SCR reaction, Cu–SSZ-13 had a good NO conversio...
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Article
Effects of different inhibitor on antioxidation of copper bonding wire at room temperature
With the rapid development of the electronic packaging industry, traditional gold bonding wires are tended to be replaced gradually and partially by copper bonding wires with low cost and better potential perf...
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Article
The thermal conductivity and tolerance factor modulated ferroelectric thermal stability of Ba0.955La0.03TiO3 relaxor ferroelectric
Based on the design from the view of the Goldschmidt tolerance factor, Ba0.955La0.03TiO3-doped Zr ferroelectric ceramics were prepared by solid-state reaction method. The experimental results show that our hypoth...
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Article
Removal mechanisms of nanosecond pulsed laser cleaning of blue and red polyurethane paint
In this study, laser cleaning of blue and red polyurethane paint on aluminum alloy surface were investigated by using a nanosecond pulsed laser at 1.8, 3.2 and 8.0 J/cm2. The surface topography after laser cleani...
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Article
Influence of Sc and Zr additions on microstructure and properties evolution of Al–Zn–Mg alloy
In this study, the effects of different Sc + Zr compound addition on the tensile properties, impact toughness, stress corrosion cracking (SCC) properties, polarization curves, electrochemical impedance spectro...
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Article
Study of the Microstructure and Properties of Cold Sprayed NiCr Coating
NiCr coating was prepared on the surface of AISI 1045 steel substrate by cold spraying. The microstructure, phase composition and mechanical properties of the NiCr coating were studied, the wear resistance and...
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Article
High-resolution transmission electron microscopy study of body-centered tetragonal Zr2Fe nanoparticle phase in Zircaloy-4 alloy and its typical crystalline defect structures
Transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy have been employed for crystallographic and microstructural characterization of nano-precipitates distributed within the α-Zr matrix...
