Ceramic matrix composites (CMCs) are advanced materials that combine ceramic fibers with a ceramic matrix to enhance performance and reduce brittleness. They offer high-temperature stability, wear resistance, and low density, and are utilized in aerospace, automotive, and energy applications. Despite benefits like superior mechanical properties, challenges include high production costs, limited scalability, and sensitivity to fabrication defects.

1. CERAMIC MATRIX
COMPOSITES-
By:- Huchhe Vaishnavi Sidhaling
Roll No:- 12
Guided By:- Mantri Sir .

2. -Title: Ceramic Matrix Composites-
• Subtitle: An Advanced Material for High-Performance Applications-

3. Introduction
• - Ceramic Matrix Composites (CMCs) are advanced materials combining ceramic fibers
within a ceramic matrix.
• - Designed to overcome traditional ceramics' brittleness.
• - Key benefits: High-temperature stability, wear resistance, and low density.
• - Applications in aerospace, automotive, and energy industries.

4. Composition and Structure
• - Matrix: Silicon carbide (SiC), aluminum oxide (Al2O3), or silicon nitride (Si3N4).
• - Reinforcement Fibers:Carbon, silicon carbide, or alumina fibers.
• - Interphase: Stress transfer and crack prevention.

5. Manufacturing Processes
• - ChemicalVapor Infiltration (CVI): Deposits matrix material into fiber preform.
• - Liquid Silicon Infiltration (LSI): Infiltrates molten silicon to form silicon carbide.
• - Sol-Gel Processing: Converts liquid solution to a solid gel matrix.
• - Hot Pressing: Uses heat and pressure to densify composites.

6. Properties
• - High-Temperature Stability (>1000°C).
• -Wear and Corrosion Resistance.
• - Low Density for lightweight applications.
• - ImprovedToughness due to fiber reinforcement.

7. Applications
• - Aerospace: Jet engine components, heat shields.
• - Automotive: Brake discs, turbocharger components.
• - Energy:Gas turbines, nuclear reactor components.
• - Defense:Armor systems, missile nose cones.

8. Advantages and Challenges
• Advantages :
- Superior mechanical properties.
- High performance under extreme conditions.
• Challenges :
-High production costs.
- Limited scalability.
- Fabrication flaws sensitivity.

9. Limitations
• - High manufacturing costs due to complex processes.
• - Limited scalability for mass production.
• - Sensitivity to fabrication defects which can compromise performance.
• - Fragility under impact or dynamic loading conditions.
• - Environmental degradation under extreme conditions like oxidation.

10. Future Perspectives
• - Focus on reducing manufacturing costs and improving scalability.
• - Advances in nanotechnology and additive manufacturing.
• - Expanding applications in high-performance industries.

11. Conclusion
• - CMCs revolutionize material science with their toughness and durability.
• - Essential for safer, more efficient, and longer-lasting components.
• - Continued research to unlock their full potential.

12. THANKS