In the present study, an attempt has been made to utilize spent alumina catalyst (SAC) waste as well as grinding sludge (GS) waste in the development of aluminum-based composite material. Nano-CuO particles have been added to the Al/SAC/GS composite to further enhance the mechanical properties of composite material. The microstructure of the developed composite by the stir casting technique showed the uniform distribution of the reinforcement particles. Results showed that tensile strength, hardness, and compressive strength of composite material improved by about 21.39%, 34.20%, and 20.73%, respectively, after adding the 4.5% SAC, 4.5% GS, and 1.5% nano-CuO in the aluminum alloy. However, the toughness of the composite material is decreased with respect to the aluminum alloy after adding the reinforcement particles. XRD of the composite material shows the presence of Al, Al₂O₃, Fe₂O₃, SiO₂, and CuO phases. The presence of these hard phases may be responsible for enhancing the tensile strength, hardness, and compressive strength of composite material. Corrosion weight loss and thermal expansion of the developed composite have been also investigated to identify the SAC, GS, and nano-CuO addition to the aluminum alloy.

在本研究中，已尝试在开发铝基复合材料时利用废氧化铝催化剂（SAC）废料和研磨污泥（GS）废料。纳米CuO颗粒已添加到Al / SAC / GS复合材料中，以进一步增强复合材料的机械性能。通过搅拌铸造技术开发的复合材料的微观结构显示出增强颗粒的均匀分布。结果表明，在铝合金中添加4.5％的SAC，4.5％GS和1.5％的纳米CuO后，复合材料的抗张强度，硬度和抗压强度分别提高了约21.39％，34.20％和20.73％。 。但是，添加增强粒子后，相对于铝合金，复合材料的韧性降低。₂ O ₃，Fe ₂ O ₃，SiO ₂和CuO相。这些硬相的存在可能负责增强复合材料的拉伸强度，硬度和抗压强度。还研究了开发的复合材料的腐蚀失重和热膨胀，以鉴定铝合金中的SAC，GS和纳米CuO。