COMPOSITE WARES

This study investigates the potential of eggshell waste as a reinforcement material in aluminum matrices for kitchenware applications, aiming to enhance material properties. Composites were fabricated with 7%, 10%, and 13% eggshell reinforcement and subjected to tensile testing, Brinell hardness testing, Differential Scanning Calorimetry (DSC), Scanning Electron Microscopy (SEM), and Energy-Dispersive Spectroscopy (EDS) to assess mechanical, thermal, and microstructural properties. Tensile testing revealed a significant increase in Ultimate Tensile Strength (UTS) with 13% reinforcement, reaching 134.29 MPa, though ductility was reduced. SEM analysis of the 10wt% composite showed a finer textured structure but non-uniform particle distribution. EDS confirmed calcium presence, and showed reduced oxygen content. Brinell hardness exhibited a positive correlation between the weight percentage of eggshell in the aluminum composite, which showed that higher eggshell content within the tested range leads to increased hardness. DSC indicated that eggshell addition altered thermal characteristics, with the 13wt% composite showing a slightly higher melting temperature and changes in heat of fusion. These results demonstrate that eggshell reinforcement enhances the tensile strength, hardness and modifies the thermal behavior of aluminum.

This study investigates the potential of eggshell waste as a reinforcement material in aluminum matrices for kitchenware applications, aiming to enhance material properties. Composites were fabricated with 7%, 10%, and 13% eggshell reinforcement and subjected to tensile testing, Brinell hardness testing, Differential Scanning Calorimetry (DSC), Scanning Electron Microscopy (SEM), and Energy-Dispersive Spectroscopy (EDS) to assess mechanical, thermal, and microstructural properties. Tensile testing revealed a significant increase in Ultimate Tensile Strength (UTS) with 13% reinforcement, reaching 134.29 MPa, though ductility was reduced. SEM analysis of the 10wt% composite showed a finer textured structure but non-uniform particle distribution. EDS confirmed calcium presence, and showed reduced oxygen content. Brinell hardness exhibited a positive correlation between the weight percentage of eggshell in the aluminum composite, which showed that higher eggshell content within the tested range leads to increased hardness. DSC indicated that eggshell addition altered thermal characteristics, with the 13wt% composite showing a slightly higher melting temperature and changes in heat of fusion. These results demonstrate that eggshell reinforcement enhances the tensile strength, hardness and modifies the thermal behaviour of aluminum