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

Authors: Anup Choudhury; Jajneswar Nanda; Sankar Narayan Das; Kamalakanta Muduli; Srikanth Bathula

Addresses: Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar-751030, Odisha, India ' Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar-751030, Odisha, India ' Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar-751030, Odisha, India ' Papua New Guinea University of Technology, Lae, Morobe Province, PMB 411, Papua New Guinea ' Papua New Guinea University of Technology, Lae, Morobe Province, PMB 411, Papua New Guinea

Abstract: 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, 600°C temperature and 9°C/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.

Keywords: date palm leaf powder; sintering temperature and time; conventional powder metallurgy; scanning electron microscopy; SEM.

DOI: 10.1504/IJMATEI.2025.145046

International Journal of Materials Engineering Innovation, 2025 Vol.16 No.1, pp.42 - 57

Received: 06 Feb 2023
Accepted: 01 Mar 2023
Published online: 18 Mar 2025 *