Types of reinforcements, their mechanical properties and functions -ceramics, glass, carbon, boron.silicon carbide, metal, aramid.Forms of reinforcements- particulate, fibre, filaments, whiskers, flakes. Pre-fabricated forms- preforms, prepegs, fabrics, honeycomb. Type of matrix, its mechanical properties and functions- polymers (thermosets and thermoplastics), metals, ceramics, glass and carbon.Basic principles in the design of composites and selection of matrix and reinforcement.Bonding mechanisms.
Anisotropic behaviourand relationship between structure-mechanical properties.Mechanical testing- tensile, compressive, Intra-laminar shear, Inter-laminar shear and fracture. Polymer Matrix Composites: Types of thermoset and thermoplastic resins. Principles in the selection of matrix and the reinforcements.Process selection criteria.Mould and tool making.Basic manufacturing steps- impregnation, lay-up, consolidation and solidification.
Manufacturing processes for polymer composites- lay-up, compression moulding, extrusion, injection moulding, sheet forming, pultrusion, hot press & autoclave techniques and filament winding. Metal and ceramic matrix composites- wettability of reinforcement to matrix and bonding, methods of manufacturing reinforcements with intermediate wetting layer. Manufacturing processes for metal matrix composites: casting methods- gravity & low pressure die, investment, squeeze, spray forming, compression moulding and thixo-moulding. Manufacturing processes for ceramic matrix composites: reaction sintering, electro-deposition, spray forming, infiltration. Applications of composites: daily usages- industrial, automotive and aerospace, advanced composites, design- selection and process of composite for new application, case studies.