Investigation of sustainable production opportunity in fabrication of hybrid aluminium metal matrix composites by powder metallurgy technique

The impact of date palm leaf powder (DPLP) as a reinforcement material in pure aluminium-alumina composites in improvement of physico-mechanical and morphological properties is investigated in this work.The fabricated hybrid composite is made up of a set amount of aluminium and various percentages of DPLP and alumina in weight% ratios of 1:4, 2:3, 3:2, 4:1.To evaluate the individual features of reinforcements and matrix, particle size distribution (PSD), X-ray diffraction (XRD), X-ray fluorescence (XRF) and CHNSO studies were used.Specimens were prepared with compacting pressure 474 MPa, two hours sintering time, 600C temperature and 9C/min heating rate.Maximum relative density and micro-hardness are found at 3 wt% DPLP addition, which are 3.15% and 48.4% higher than those of the aluminium-5 wt% alumina composite, respectively.The use of DPLP as reinforcement solves the problem of its disposal, provides a way for its recycling, and thus eliminates its pollution issues.