KAOLIN-REINFORCED ALUMINIUM METAL MATRIX COMPOSITES: A REVIEW OF PROCESSING AND INTERFACIAL BEHAVIOUR PROPERTIES
Metal matrix composites have emerged as advanced engineering materials offering superior mechanical and thermal properties compared to conventional metals. Among various reinforcement options, kaolin clay presents a cost-effective and sustainable alternative to conventional ceramic reinforcements in aluminum matrix composites. This review examines the current state of research on kaolin-reinforced aluminum metal matrix composites, focusing on processing techniques, interfacial characteristics, and resulting material properties. The findings critically analyze liquid-state and solid-state processing methods, with particular emphasis on stir casting techniques and their process parameters. Interfacial bonding mechanisms between kaolin particles and aluminum matrix are discussed, highlighting the role of surface modification treatments in enhancing composite performance. The mechanical, thermal, and tribological properties of kaolin-reinforced aluminum composites are evaluated across various reinforcement contents and processing conditions. Optimization methodologies, particularly Taguchi design of experiments and grey relational analysis, are examined for their effectiveness in identifying optimal processing parameters. Despite promising results demonstrating improved wear resistance and hardness with kaolin addition, significant research gaps remain regarding particle size effects, modification temperature optimization, and multi-objective property enhancement. This review identifies critical areas requiring further investigation and provides insights into the potential industrial applications of kaolin-reinforced aluminum composites in automotive, aerospace, and structural engineering sectors.
Authors : Mohammed, G.M., Mshelia, Z.A. and Hammajam, A.A.
Category : Open Access Volume (Issue) : 12(1) Date Uploaded : 15th August 2026