Machining A development in microstructure within the Al-7075/Al₂O₃ (Alumina) combination was exhibited in this instance by altering its granular sizes for reinforcements throughout its substrate using the technique of powder metallurgy. Attention was placed on altering various reinforcing sizes of particles, including analyzing individual micro-structural architectures and potential consequences for overall nano-composite mechanical characteristics. Powder metallurgy was used to create nanocomposites of 9 vol.% Al₂O₃ (average size – 40 nm) strengthened within an aluminum matrix. A further additional set of exhibits with a comparable constitution (average size 20 m) was created to contrast both the mechanical and physical characteristics of the micro-composites and nanocomposites. Those nano- and micro-composites were characterized through a combination of X-ray diffraction (XRD), microscopy, and a scanning electron microscope (SEM), including density, microhardness, compressive strength, resistance to wear, and corrosion resistance tests. When compared against the Al₂O₃ micro-particles, the Al₂O₃ nanoparticles displayed contact with substantial physical closeness within the aluminum matrix. Because the operating temperature gets relatively inadequate, aggregates get minimized, and no new phases are generated when using the powder metallurgy approach.

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