Carbon-coated silver nanoparticles dispersed in a 2024 aluminum alloy produced by mechanical milling

Aluminum-based nanocomposites were produced by dispersing different contents of carbon-coated silver nanoparticles (Ag-C NP) into a 2024 aluminum alloy (Al₂₀₂₄). After milling nanostructures about 100 nm grain sizes were obtained. Increment in mechanical properties was observed in all composites synthesized. The reinforcement nanoparticles were distributed homogeneously into the Al₂₀₂₄ matrix by mechanical milling process. The yield strength (σ_y) and Brinell hardness (HB), of the nanocomposites increased as the nanoparticles content was increased as well.