A5050629684- Microstructure and mechanical properties
- Aluminum Alloys Composites Properties
- Metal Forming Simulation Techniques
- Metallurgy and Material Forming
- Aluminum Alloy Microstructure Properties
- Gold and Silver Nanoparticles Synthesis and Applications
- Microstructure and Mechanical Properties of Steels
- Nanocluster Synthesis and Applications
- Synthesis and properties of polymers
- Copper-based nanomaterials and applications
- Nanoparticles: synthesis and applications
- Advanced ceramic materials synthesis
- Advanced Welding Techniques Analysis
- Fusion materials and technologies
- Structural mechanics and materials
- Nanomaterials for catalytic reactions
- Nanoparticle-Based Drug Delivery
- Silicone and Siloxane Chemistry
- Radiopharmaceutical Chemistry and Applications
- High-Velocity Impact and Material Behavior
- Material Properties and Applications
- Advanced materials and composites
- Inhalation and Respiratory Drug Delivery
- Advanced Nanomaterials in Catalysis
The University of Texas at Arlington
2020-2024
Amirkabir University of Technology
2013-2015
University of Tehran
2010-2012
Single-crystal silver dendrite structures, which possess a high surface area along with narrow gaps and sharp edges, have been widely explored as enhanced Raman scattering substrates for catalytic biosensing applications. With one of the simplest galvanic reactions, reaction AgNO3 Cu, Ag dendrites can easily be produced. Here, we report new findings about this growth mechanisms. A series experiments revealed much more complicated mechanism: metal could form through reduction Ag+ by...
During the last years lots of efforts have been done to industrialize equal channel angular pressing (ECAP) technique. Both Continuous Confined Strip Shearing (C2S2) and ECAP-Conform methods are rather recent techniques, making a continuous process from ECAP method. In present study both mentioned processes were simulated with ABAQUS Finite Element software for commercially pure aluminum. C2S2 sample gradually experienced equivalent plastic strain (PEEQ) 0.13 at initial stages bending, while...
Interest in processing of bulk ultrafine-grained materials has grown significantly over the last years. Severe plastic deformation processes such as twist extrusion have been essence these researches and used to decrease grain size. The gain size can reduce if process combines with a conventional forming technique. In this study, effects reduction by employing rolling after method were considered. commercially pure aluminum sample was carried out using twisted die 60º angle, samples...
Recently severe plastic deformation processes have been the essence of metal forming researches to produce ultrafine-grained materials. Twist Extrusion (TE) is one most unprecedented methods developed in recent years, but remained laboratory scales. The main reason for this matter refers some deficiencies like microstructure heterogeneity occurring after TE. However, employing conventional techniques could make TE industrial and, moreover, reduce bulk structure grain size. Using a process...
Recently, severe plastic deformation processes have been the essence of metal forming researches to produce ultrafine-grained materials. Twist Extrusion is one most unprecedented methods developed in recent years, but has some deficiencies. The main microstructure and mechanical heterogeneity, occurring after twist extrusion. Performing rolling as a conventional technique was suggested solution this paper. It not only decreased grain size, also reduced improved size distribution. Employing...
We report a simple synthesis process for wide variety of ultrasmall nanocrystals. Simply immersing dialysis bag containing an aqueous solution metal salt mixed with citric acid in NaOH reservoir 10 min, nanocrystals measuring only few nanometers size are formed inside the bag. demonstrated Co, Ni, Cu, Ag, Au, Pd, Cu2O, FeO, and CeO2, found that gradual change pH caused by diffusion OH− ions through membrane played essential role formation these This method can be readily adapted almost all...