Where are metal matrix composites used?

Metal matrix composites are advanced engineered materials capable of displaying improved strength, wear and creep resistance, excellent damping and reduced thermal expansion making them suitable for a wide range of applications in transportation, cutting tools, consumer electronics, defense, space, aerospace, marine.

What are the applications of MMC?

MMCs have been developed for use in diesel engine pistons, cylinder liners, brake drums, and brake rotors (Chawla and Chawla, 2006). Other potential applications where MMCs have been tried are connecting rods, piston pins, and drive shafts. The major impediment toward their wider use is their high cost.

What are the applications of metal matrix composites?

The following are some of the most common application areas of composite metal matrix materials:

• Pushrods for racing engines.
• Carbide drills.
• Tank armors.
• Automotive industry – disc brakes, driveshaft, engines.
• Aircraft components – structural component of the jet’s landing gear.
• Bicycle frames.
• Space systems.

How are MMC manufactured?

MMCs are made by dispersing a reinforcing material into a metal matrix. The reinforcement surface can be coated to prevent a chemical reaction with the matrix. To prevent this reaction, the carbon fibers are coated with nickel or titanium boride.

How metal matrix composites are manufactured?

Aluminium metal matrix composites (AMMCs) are reinforce with other metals, organic compounds or ceramics. They are made by mixing of the reinforcement materials in the metal matrix. The mixing of reinforcement promotes the better properties of base metals, i.e. matrix metals.

What are cermets used for?

Cermets are used in the manufacture of resistors (especially potentiometers), capacitors, and other electronic components which may experience high temperature. Cermets are used instead of tungsten carbide in saws and other brazed tools due to their superior wear and corrosion properties.

What are the polymer matrix composites and give its examples?

Polymer matrix composites (PMC) are composed of a matrix from thermoset (epoxies, phenolics) or thermoplastic (polycarbonate, polyvinylchloride, nylon, acrylics) and embedded glass, carbon, steel, or Kevlar fibers.