A composite material is produced by combining two or more materials with different physical or chemical properties to create a new material with unique properties. A composite contains a matrix that binds reinforcing materials like fibers, particles, or laminates. Common matrices include polymers, metals, and ceramics, while reinforcements include fibers, particles, and sandwich panels. Composites have advantages over alloys like high strength to weight ratio and design flexibility, but also disadvantages such as high cost and difficulty identifying defects. Major applications of composites include aerospace, construction, sports equipment, and motorsports.

1. COMPOSITE
MATERIALS
Jerome Christo. S

2. DEFINITION:
A COMPOSITE MATERIAL is produced from two or more
constituent materials with notably dissimilar chemical or physical
properties which are merged to create a material with properties
unlike the individual elements.

3. CONSTITUENTS:
• Matrix(binder):
 Binds the fibers together.
 Protects fibers from corrosion and wear.
 Determines surface quality.
 Provides rigidity and shape to the structure.
• Reinforcement:
 Carries 70-90% load.
 Determines structural properties of the composite.

4. MATRIX
 Organic Matrix Composites (OMCs)
 Polymer Matrix Composites (PMCs)
 Carbon‐Carbon composites
 Metal Matrix Composites (MMC)
 Ceramic Matrix Composites (CMC)

5. REINFORCEMENT
Fibre reinforced composites
Particulate reinforced composites
Structural composites
(Laminar, sandwich)

7. Sandwich panels

8. ALLOYS vs COMPOSITES:
Alloy
• Atleast one component should be
metal.
• Constituents combine chemically.
Composite
• Both constituents can be non
metallic.
• Constituents remain chemically
distinct.

10. ADVANTAGES
• High strength to weight ratio
• Lightweight
• Fire resistance
• Electrical properties
• Colour
• Low thermal conductivity
• Design flexibility

11. DISADVANTAGES
• High cost
• Difficult to dispose
• Higher wastage of material
• Transverse properties may be weak
• Difficult to identify defects

12. APPLICATIONS:
 Motorsports
 Aerospace
 Construction
 Sports equipments

15. Manufacturing
methods

16. Hand layup

17. Filament winding

19. Spray up

21. Vaccum Assisted Resin Transfer Moulding

23. Pultrusion

25. Stir casting

27. Pre preg processing

29. Autoclave

31. SMART
COMPOSITES
– Smart
materials
embedded in
composite.

33. THANK YOU...