Aluminum–graphite composite produced by mechanical milling and hot extrusion

Graphite nanoparticle dispersion in 7075 aluminum alloy by means of mechanical alloying

“…The chemical composition (wt.%) of the alloy was Zn-5.6, Mg-2.5, Cu-1.6, Cr-0.23, Al (balance) and graphite nanoparticles (GNP) 0-2. The GNP (20-30 nm) were produced from graphite powder and metallized by MA in a high energy SPEX mill as according to a method already reported [16,17].…”

Influences of graphite reinforcement on the tribological properties of self-lubricating aluminum matrix composites for green tribology, sustainability, and energy efficiency—a review

“…Mixing raw materials is an important process due to controlling factors involved in the distribution of particles and porosity in the composites, both of which influence the tribological properties. Segregation or clustering of particles is thus a common problem with the present state of the art of mixing technology [110]. There are two different reasons for segregation.…”

“…Temperature for sintering is below the melting point of the metal. One of the challenges that exist for PM technique is the presence of oxide films on powders, and it leads to poor strength in solid phase sintering which cause poor strength in its final composite properties [110]. To overcome the low strength, mechanical alloying and hot pressing processes can be employed by repeating fracture and Wetting of molten aluminum on coppercoated graphite substrate after the wetting angle reaches a nearly steady state [85] partial melting of mixtures of constituent powders by high energy compressive-impact forces [112].…”

Microstructural and mechanical characterization in 7075 aluminum alloy reinforced by silver nanoparticles dispersion

“…The term 'nanocomposite' is used when the dispersed phase is in the range of nanometers. Mechanical alloying and mechanical milling have emerged as alternative ways to produce nanocomposite materials, formed by nanoparticles dispersion into a metallic matrix [1,[4][5][6][7][8]. The present study is focused on the * Corresponding author.…”