Development of Metal Matrix Composites Through Liquid State Technique

Abstract

The stir casting process (SC or SCP) is an established technique for achieving effective bonding and mixing between matrix materials and ceramic reinforcements. This method facilitates chemical interactions through vortex flow within the melt, ensuring uniform distribution of the reinforcements. While SCP has demonstrated notable success in producing aluminium and magnesium matrix composites, its potential for polymer composite development is still being explored, offering promising opportunities for innovation. This chapter examines the research advancements in SCP for various materials, its industrial challenges, and its evolving applications. Effective degassing is identified as a critical step in the production of high-quality metal matrix composites (MMCs). SCP-derived MMCs find extensive applications in the automotive and aerospace industries, underscoring their significance. The versatility of SCP extends to the fabrication of advanced materials such as hybrid metal composites, nanocomposites (NCs), functionally graded materials (FGMs), and ultra-fine graded composites (UFGs) when combined with other manufacturing methods. The performance and outcome of SCP are influenced by factors such as process temperature, reinforcement proportion, and key process parameters. Further research is essential to optimise these parameters, explore novel applications, and fully realise the potential of SCP in producing next-generation materials. © 2025 selection and editorial matter, Tharmaraj Ramakrishnan and PM Gopal; individual chapters, the contributors.