In the present work, an aluminum metal matrix reinforced with (Al₂O₃) nanoparticles was fabricated as a surface composite sheet using friction stir processing (FSP). The effects of processing parameters on mechanical properties, hardness, and microstructure grain were investigated. The results revealed that multi-pass FSP causes a homogeneous distribution and good dispersion of Al₂O₃ in the met...

INTRODUCTION JET-Fresh (Dentsply International, York, PA), a new airpolishing powder that contains aluminum trihydroxide as the abrasive agent, has been introduced for use with Prophy-Jet trade mark (Dentsply International). PURPOSE The aim of this study was to investigate the surface effects of aluminum trihydroxide airpolishing powder on a series of restorative materials. MATERIALS AND ME...

Aluminum matrix composites are key materials used in the preparation of lightweight structural parts. It has advantages low density, high specific strength, and stiffness. Additionally, its friction wear properties important factors that determine material’s suitability for use a batch. Therefore, this paper systematically analyzes current research on behavior particle-reinforced aluminum compo...

Abstract Aluminum hybrid composites have the potential to satisfy emerging demands of lightweight materials with enhanced mechanical properties and lower manufacturing costs. There is an inclusion reinforcing variable concentrations for preparation metal matrix attain customized properties. Hence, it obligatory investigate impact different machining conditions selection optimum parameter settin...

Aluminum/alumina composites are used in automotive and aerospace industries due to their low density and good mechanical strength. In this research, the effect of mechanical stirring of slurry in liquid-solid phase temperature and injection of alumina powder with inert gas (Ar) on microstructure and mechanical properties of Al-A356 alloy is investigated. In order to improve of the wettability a...

In this research, a novel method to decrease micro-residual stresses of fibrous composites by adding carbon nanotubes (CNTs) is proposed in detail. The negative coefficient of thermal expansion and the high young’s modulus of CNTs can be utilized to counterbalance the process induced residual stresses in composites. To this end, first, the effects of adding CNTs to the matrix of fibrous composi...

Reinforcement of aluminum and alloys with graphene has been intensively practiced by researchers in the past dozen years. The role Al4C3, which could be produced unintentionally or purposefully during composite production, was controversial until it found that nano-sized carbides were beneficial for strengthening composites. aluminum-graphene-nano-sized Al4C3 composites us using powder metallur...

The object of this study is the thermophysical properties polymer micro- and nanocomposites, as well dependence their heat conductivity with structural characteristics when using different types fillers. A set experimental studies specific capacity nanocomposite materials for polyamide 6 carbon nanotubes, copper aluminum matrix fillers was carried out. When obtaining composites, a method used t...

Metal matrix composites (MMCs) are among the very important engineering materials by which the combinations of various properties can be achieved. The MMCs have the great potential for use in automobile and aerospace industries for possessing high strength, stiffness and hardness. The reinforcement types used in the composites are continuous, discontinuous, short, whiskers and particles. The at...