140 Result(s)
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Article
Effect of Welding Speed on Friction Stir Welds of PM2000 Alloy
Friction stir welding (FSW) was investigated for producing joints of alloy PM2000 with welding speeds from 1 to 3 mm/s. The effect of welding speed on the microstructures and mechanical properties of the joint...
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Article
The enhanced piezoelectricity of 0.7BiFeO3–0.3BaTiO3 by optimizing charge defects through annealing
High-performance 0.7Bi1.02FeO3–0.3BaTiO3 ceramics are prepared by traditional solid-state method with annealing. The effect of annealing temperature (TA) on the piezoelectric properties of ceramics are revealed b...
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Article
Open AccessSuperconductivity and topological aspects of two-dimensional transition-metal monohalides
Two-dimensional (2D) superconducting states have attracted much recent interest, especially when they coexist with nontrivial band topology which affords a promising approach towards Majorana fermions. Using f...
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Article
Rational design of hierarchically structured dual-encapsulated CoMoO4 nanosheets via in situ plasma tuning for efficient Li+ storage
Engineering electrodes with desirable nanostructures are regarded as an urgent challenge to achieve enhanced electrical conductivity, stable structural integrity, and advanced performance for Li+ storage. Various...
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Article
Enhanced photocatalytic activity induced by defect engineering in porous graphitic carbon nitride nanosheets
In this study, we develop a synergistic strategy combining defect engineering and porous structures to increase the photocatalytic activity of graphitic carbon nitride (g-C3Nx) under simulated sunlight. The photo...
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Article
CFD Simulation of Suspension Characteristics in a Stirred Tank for Slurry Electrolysis
Slurry electrolysis (SE) is a one-step green electrochemical technology used for the treatment of complex ores and solid waste. To explore the solid–liquid suspension characteristics of an SE stirred tank for ...
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Article
Experimental study on shear viscosity and rheopexy of Escherichia coli suspensions
Escherichia coli suspension, as a paradigmatic model system of active fluids, shows different rheological responses from passive suspensions under shear. To investigate the effect of suspension volume fraction, b...
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Growth mechanisms of intermetallic compounds and Bi-rich layer in ball grid array structure Cu/Sn-58Bi/Cu solder joints during solid–solid and liquid–solid electromigration
Sn-58Bi solder has attracted much attention due to its low melting temperature and low cost in recent years. However, Sn-58Bi solder might occur locally melting due to the high local temperature by Joule heati...
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Article
Kinetics-controlled synthesis of gold–palladium alloy nano-corolla using a syringe pump and their applications for ethanol oxidation reaction
Gold–palladium (AuPd) alloy nano-corolla are successfully prepared in high purity, followed by exploration as electrocatalysts for electroxidation of ethanol (EOR) in alkaline medium. Applying kinetics control...
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Article
Length effect of ceria nanorod on its oxygen vacancy formation and photocatalytic property
Ceria nanorods (NRs) with an average length of 23, 73, 115, 131, and 192 nm were synthesized separately by a facile hydrothermal method and then were roasted at 600 °C in air, 50% H2, and pure H2 to generate var...
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Article
Preparation of low thermal conductivity hierarchically porous diatomite ceramics by doped with ZrSiO4 opacifier-based foam-gelcasting method
Hierarchically porous diatomite ceramics (HPDCs) doped with ZrSiO4 as the opacifier were successfully prepared by means of foam-gelcasting with diatomite powder as original material. The effects of the opacifier,...
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Article
Flow zone distribution and mixing time in a Peirce—Smith copper converter
Peirce—Smith copper converting involves complex multiphase flow and mixing. In this work, the flow zone distribution and mixing time in a Peirce—Smith copper converter were investigated in a 1:5 scaled cold mo...
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Article
Computational Fluid Dynamics Simulation of Gas–Matte–Slag Three-Phase Flow in an ISASMELT Furnace
A mathematical model was developed to simulate gas–matte–slag three-phase flow in ISASMELT furnace with a top-submerged lance. An experimentally verified simulation model was established by adopting a VOF mult...
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Article
Seeded growth of wavy Au@PdAu core-shell nanoplates with tunable thickness for visible light-assisted reduction of 4-nitrophenol
Wavy gold@palladium-gold (Au@PdAu) core-shell nanoplates are successfully prepared via seeded growth. Starting with the use of plate-like Au nanocrystals with the thickness of ~10 nm as seeds, the preferential...
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Article
Retraction Note: Adsorption kinetics and thermodynamics of Ni (II) by Pisha sandstone
A correction to this paper has been published: https://doi.org/10.1007/s11051-021-05230-4
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Article
Coupling high-throughput experiment and machine learning to optimize elemental composition in nickel-based superalloys
Establishing relationship of elemental composition and mechanical property is a tremendous amount of work in superalloys. Here, machine learning coupled with high-throughput experiment is adopted to construct ...
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Article
Dependency of Flow Pattern in the Mold on the Distribution of Inclusions Along the Thickness of Continuous Casting Slabs
In the current study, the transition of the flow pattern in a 1000 mm × 237 mm continuous casting mold with the injected argon gas was measured using nail boards and the effect of flow pattern on the distribut...
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Article
Interlaminar mechanical properties of nano- and short-aramid fiber reinforced glass fiber-aluminum laminates: a comparative study
Delamination damages limit the application potential of Fiber metal laminates, hence improving the interlaminar mechanical properties has always been a research focus and challenge in this field. The toughenin...
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Effect of Thermal History on the Deformation of Non-metallic Inclusions During Plain Strain Compression
The deformation of inclusions in the steel was affected by the thermal history during the physical simulation of steel processing. After plain strain compression with a reduction of 30 pct, the average aspect ...
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Article
Vibration Characteristics of Functionally Graded Porous Nanocomposite Blade-disk-shaft Rotor System Reinforced with Graphene Nanoplatelets
This paper presents a study on the modelling and free vibration analysis of a rotating functionally graded (FG) porous blade-disk-shaft assembly reinforced with graphene nanoplatelets (GPLs) resting on elastic...