A5021076766- High Entropy Alloys Studies
- High-Temperature Coating Behaviors
- Advanced materials and composites
- Intermetallics and Advanced Alloy Properties
- Aluminum Alloys Composites Properties
- Advanced Welding Techniques Analysis
- Additive Manufacturing Materials and Processes
- Advanced Thermoelectric Materials and Devices
- Chalcogenide Semiconductor Thin Films
- Electrocatalysts for Energy Conversion
- Microstructure and mechanical properties
- Aluminum Alloy Microstructure Properties
- Metal and Thin Film Mechanics
- Catalytic Processes in Materials Science
- Advanced battery technologies research
- Catalysis and Oxidation Reactions
- Metal Alloys Wear and Properties
- Heusler alloys: electronic and magnetic properties
- MXene and MAX Phase Materials
- Metallurgy and Material Forming
- Quantum Dots Synthesis And Properties
- Nuclear Materials and Properties
- Thermal properties of materials
- Shape Memory Alloy Transformations
- Metal Forming Simulation Techniques
South Ural State University
2020-2025
National Research University Higher School of Economics
2024-2025
K.N.Toosi University of Technology
2017-2023
Islamic Azad University of Shiraz
2021
Institut de Recerca en Energia de Catalunya
2018
Shiraz University
2016
Islamic Azad University South Tehran Branch
2016
Amirkabir University of Technology
2013-2014
Abstract The shuttle effect and sluggish conversion kinetics of lithium polysulfides (LiPS) hamper the practical application lithium–sulfur batteries (LSBs). Toward overcoming these limitations, herein an in situ grown C 2 N@NbSe heterostructure is presented with remarkable specific surface area, as a Li–S catalyst LiPS absorber. Density functional theory (DFT) calculations experimental results comprehensively demonstrate that characterized by suitable electronic structure charge...
High entropy alloys (HEAs) are highly suitable candidate catalysts for oxygen evolution and reduction reactions (OER/ORR) as they offer numerous parameters optimizing the electronic structure catalytic sites. Herein, FeCoNiMoW HEA nanoparticles synthesized using a solution-based low-temperature approach. Such show high properties, subtle lattice distortions, modulated structure, leading to superior OER performance with an overpotential of 233 mV at 10 mA cm-2 276 100 . Density functional...
In this work, the effect of vibration on mechanical, corrosion and wear characteristics AZ91 composite layers fabricated by a modified friction stir processing has been examined. The was implemented motor into fixture placed beneath work-piece. It observed that could highly modify microstructure mechanical properties layer owing to increase in strain rate, deformation, expansion material flow zone. Tensile strength increased from around 203 MPa for samples processed process (FSP) about 234...
Various methods have been proposed to modify the friction stir welding. Friction vibration welding and underwater are two variants of this technique. In welding, adjoining workpieces vibrated normal joint line while is carried out, in process performed underwater. The effects these modified versions on microstructure mechanical characteristics AA6061-T6 aluminum alloy welded joints analyzed compared with fabricated by conventional results indicate that grain size decreases from about 57 μm...
In this article, the effect of vibration and cooling media on friction stir welding 5083Al alloy is investigated. The was introduced by motor into fixture inserted under workpiece while a (water lubrication oil) flowed canal in beneath weld path. A constant rotation speed 1250 r/min traveling 90 mm/min were used for all conditions. thermal analysis measured several thermocouples indicated that (FSVW) provided maximum temperature distribution workpiece, with water exhibited lowest value....
In this article, dissimilar magnesium and aluminum alloys were welded with a Zn interlayer TiC nanoparticles by friction stir welding. Optimal joining conditions achieved combination of three traverse speeds (30, 45, 60 mm/min) constant rotational (1050 rpm). The best microstructure evolution mechanical properties for specimens joined at 1050 rpm 45 mm/min, respectively. grain size decreases as the speed increases from 30 to mm/min due reduction in heat input, an improvement reinforcing...
The development of noble metal-free heterogeneous catalysts holds promise for the solvent-free and selective aerobic oxidation organic compounds. However, moderate activity these under atmospheric conditions limits their industrial use. In this work, synthesis (CoFeMnCuNiCr)3O4 high-entropy oxide (HEO) nanoparticles grafting on reduced graphene (rGO) to produce a HEO–rGO nanocomposite is detailed. X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman Mössbauer spectroscopy...
In this work, La(FeCuMnMgTi)O3 HEO nanoparticles with a perovskite-type structure are synthesized and used in the electrocatalytic CO2 reduction reaction (CO2RR). The catalyst demonstrates high performance as an electrocatalyst for CO2RR, Faradaic efficiency (FE) of 92.5% at current density 21.9 mA cm–2 under −0.75 V vs saturated calomel electrode (SCE). Particularly, FE above 54% is obtained methyl isopropyl ketone (C5H10O, MIPK) partial 16 cm–2, overcoming all previous works. Besides,...
High-entropy materials offer numerous advantages as catalysts, including a flexible composition to tune the catalytic activity and selectivity large variety of adsorption/reaction sites for multistep or multiple reactions. Herein, we report on synthesis, properties, electrocatalytic performance an amorphous high-entropy boride based abundant transition metals, CoFeNiMnZnB. This metal provides excellent toward oxygen evolution reaction (OER), low overpotential 261 mV at 10 mA cm-2, reduced...
Increasing the strength of metallic multilayered composites fabricated through accumulative roll bonding (ARB) is typically accompanied by a sacrifice in ductility. In current work, we propose strategy to achieve microstructural refinement and outstanding strength-ductility synergy Al/Brass composites. Here, aluminum matrix exhibits bimodal grain distribution, consisting fine equiaxed grains with an average size ∼100 nm ultrafine-elongated grains, which brass fragments were distributed...