1. The application of Composite materials
Introduction
Metal matrix composite
Polymer matrix composite
Ceramic matrix composite

2. Introduction
Composites offer many advantages over other materials. The main advantages of composites may be summarized as:
Stronger and stiffer than metals on a density basis.
For the same strength, lighter than steel by 80% and aluminium by 60%
Superior stiffness-to-weight ratios 

3. Introduction Capable of high continuous operating temperatures
Highly corrosion resistant
Electrically insulating properties are inherent in most composites (depending on reinforcement selected).
Tailorable thermal expansion properties

4. Introduction Electromagnetic properties Outstanding durability
Exceptional formability

5. Metal matrix composite
A selection of ultra-hard and wear-resistant components manufactured from Fe/TiC MMCs under the trade name Ferro-Tic® from Pacific Sintered Metals (formerly Alloy Technology International, Inc.).

6. Metal matrix composite
Power transmission towers with conductor cables being installed. The inset shows a cross-section of an aluminum conductor composite reinforced (ACCR) MMC conductor cable consisting of 19 inner Al/Al2O3 continuously reinforced MMC wires and 54 outer Al conductors. The MMC wires are lighter, stronger and stiffer than the steel wires that they have replaced, carry significant current, and have a lower coefficient of thermal expansion than steel.

7. Metal matrix composite
An Alcan air-cooled brake disc made of A359 Al alloy reinforced with 20 vol.% of ceramic SiC particles

8. Polymer matrix composite
Thermoset polymer composites reinforced with glass, carbon, or Kevlar fibers are widely used in modern limbs systems
The shaft or stem is fabric carbon fiber reinforced epoxy composites. It provides structural support and force transmission to mimic the skeleton . the foot unit are made of laminated CF/epoxy composites and are designed to serve as flat spring-like leaves so that the foot provides strong cushioning and energy storing effect.
Photograph of a typical artificial
leg showing socket, shaft, and foot.

9. Polymer matrix composite
LDM Technologies produces an Engine Compartment Optimization system using reinforced high-temperature nylons and ABS to improve the appearance of the underhood area

10. Polymer matrix composite
The lower door panel for the BMW 7 Series sedan is compression molded using prepreg natural fibre mats and BASF acrylic copolymer.
impact-modified 35% glass reinforced Ultramid PA 6 from BASF was used to injection mould this oil pan

11. Ceramic matrix composite
hot-firing test（4MPa)
Temperature（1260℃)
Vulcain subscale C/SiC nozzle extensions (1:5).
high combustion chamber pressure test with 8MPa

12. Ceramic matrix composite
A carbon-ceramic brake disc made of carbon fiber reinforced silicon carbide composites is shown in Fig. The advantage of using carbon-ceramic brake discs is a significant weight reduction of around 65% over conventional brake systems using cast-iron brake discs. It should be noted that the carbon-ceramic brakes also maintain high friction even at elevated temperatures, similar to the characteristics of C/C composite brakes. Carbon-ceramic brakes have already been applied in expensive commercial vehicles.

13. Ceramic matrix composite
Ceramic-lined tubes used for transferring powdery materials in the steel-making process. Ceramic plates are bonded on the inner surfaces of steel tubes to improve wear resistance.

14. The end
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