Journal of Polymer & Composites Original Research Special issue
Development and Comparative Study of Aluminium- Copper Metal Based Composite Through Different Routes
Abstract
The aim of this study is to develop aluminium-copper composite through powder metallurgy technique. Powder metallurgy is an art or technology which can produce exact dimension of final roducts utilizing less energy. Copper oxide (CuO) was used as the source of copper, which was extracted through a reduction process using dextrose. The reaction was thoroughly examined and reported. Commercially available aluminium powder served as source of the aluminium. Aluminium- copper powder mixtures were prepaired where copper percentages (weight percentage) were varied from 0 to 20 percentage. Prepared powders were uniaxially pressed and sintered at 6000C for one and half hours into controlled environment towards developing the composites. The sintered composites were subjected to various characterization and measurements, including apparent porosity, density and mechanical properties. Furthermore, developed composite materials underwent low-temperature aging treatment, afterwhich mechanical properties were evaluated. The effects of heat treatment on microstructural changes were investigated using optical microscopy and Field Emission Scanning Electron Microscope (FESEM). Results show a direct correlation between the increase in copper content and a systematic enhancement in hardness values. Aluminum, due to its lower density compared to copper, contributes to composites with a high strength-to-weight ratio while also enhancing stiffness and overall mechanical performance compared to pure sintered aluminum.
Keywords
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