Microstructure Characterisation and Analysis of AA2024/SiC/Carbonised Eggshell-Reinforced Hybrid Green Aluminium Matrix Composite

The driving force behind this work is to investigate the microstructure of hybrid green aluminium matrix composite (AMMCs) made of AA2024/SiC/carbonised eggshell by using the stir casting method. The stir casting procedure is utilised in this study to allow (SiC and carbonised ES) hybrid reinforcement particles to mix equally in AA2024 matrix. The composition of reinforcements in this study varies from 3 to 12 wt% of SiC and ES particles together in a step of 3, i.e. (3, 6, 9, 12) as per earlier researchers. The microstructure characterisation of AA2024/carbonised eggshell/SiC composite was carried by SEM and XRD technique. The results revealed the strong bonding and uniform distribution between particles and matrix at 3% and 6%, respectively, and agglomeration and clustering of particles is being observed with increase in wt% of reinforcement beyond 6%. The term “Green” is being added to signify waste reduction from the environment by using ES as a waste reinforcement and to make our environment sustainable and eco-friendly.