Ehsan Borhani
Nano-materials Group, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran
[ 1 ] - A review on nanostructured stainless steel implants for biomedical application
Over the last two decades, many researchers have developed a variety of stainless steel-based medical implant types,taking full advantage of nanostructuring technologies. In this paper the application, fabrication and development of nanostructured stainless steel based materials with new composition for medical implants will be discussed. It is well established that application of severe plasti...
[ 2 ] - Microstructure and Crystallographic Texture Characterization of Friction Stir Welded Thin AA2024 Aluminum Alloy
Friction stir welding (FSW) is a promising technique to join aluminum alloys without having problems encountered during fusion welding processes. In the present work, the evolution of microstructure and texture in friction stir welded thin AA2024 aluminum alloy are examined by electron backscattered diffraction (EBSD) technique. The sheets with 0.8 mm thickness were successfully welded by frict...
[ 3 ] - مروری اجمالی بر تاثیر شیوه‌های مختلف انجام نورد انباشتی بر ریزساختار و ویژگی‌های مکانیکی آلیاژهای نانوساختار و نانوکامپوزیت‌های بر پایه آلومینیم
در سال های اخیر، روش های مبتنی بر تغییر شکل پلاستیک شدید، جهت بهبود ساختار و خواص مکانیکی فلزات مختلف بویژه آلومینیم مورد توجه قرار گرفته اند. از میان روش های مختلف، فرایند نورد انباشتی جهت اصلاح ساختار ورق ها بسیار مورد توجه است. با استفاده از این روش می توان آلیاژهای آلومینیم نانوساختار و نانوکامپوزیت های آلومینیم و ذرات تقویت کننده را ایجاد کرد و همزمان ویژگی های مکانیکی مانند استحکام کششی و...
[ 4 ] - EBSD characterization of nano/ultrafine structured Al/Brass composite produced by severe plastic deformation
In the present work, nano/ultrafine structured Al/Brass composite was produced by accumulative roll bonding (ARB) up to eight cycles. The evolution of grain refinement and deformation texture and their effect on the mechanical properties were investigated. It was observed that by increasing the ARB cycles, due to the difference in flow properties of the metal constituents, brass layers necked, ...
[ 5 ] - Core-shell nanoparticles for medical applications: effects of surfactant concentration on the characteristics and magnetic properties of magnetite-silica nanoparticles
Objective(s): The use of cationic surface-active agents (surfactant) in the synthesis of nanoparticles, with formation of micelle, can act as a template for the formation of meso-porous silica. Changes in the concentration of surfactants can affect the structures and properties of the resulting nanoparticles.Materials and Methods: Magnetite nanoparticles were prepared as cores using the c...