M.Sc. Tezi Görüntüleme

      In this study, Al2O3 particle-reinforced Al based metal matrix composites (MMC’s) were produced by mechanical alloying (MA) tecnique. The effect of mechanical alloying process on properties of composite materials was investigated. In the produced composites, the ratio of reinforcing material of Al2O3 particle was chosen as 5%, 10% and 15% by volume ratio. Mechanical alloyed Al alloy and Al-Al2O3 composite powders were cold compacted at 200, 300, 500 and 700 MPa, respectively. Specimens were then sintered at 600oC for 3 h under Ar atmosphere in a tube furnace. The morphology and the structure of the prepared powder, which change with milling time, were evaluated using scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques, respectively.