Carbon fiber and it's applications

A brief presentation on Carbon Fiber and its applications by students of Ahsanullah University of Science and Technology (AUST)

1. CARBON FIBER & IT’s APPLICATIONS Submitted To - Mr. ABHISHEK KUMAR GHOSH Assistant Professor Submitted By – Pritam Bhowmick (13.02.08.061) Sahriar Rahman Tanvir (12.02.08.062) Shahed Anwer Tanmoy (12.02.08.032) S.M. Ashik Abir Orup (13.01.08.050)

2. Topics to be narrated Composite Material? What is C arbon Fiber? Making of Carbon Fiber Precursors PAN PITCH Properties Applications Carbon Fiber markets Advantages Disadvantages Discussions References

3. COMPOSITE MATERIALS

4. What is Carbon Fiber ? Composed of carbon atoms bonded together to form a long chain. A super strong material that's also extremely lightweight. Five times stronger than steel , Two times stiffer , and about Two-Third times less in weight.

5. Carbon Fiber Thin strands of carbon- even thinner than human hair. Strands can be twisted together, like yarn- can be woven together, like cloth extremely lightweight.

6. How is Carbon Fiber Made? Production from two sources -: Polyacrylonitrile (PAN) Pitch The raw material used to make carbon fiber is called the precursor.

7. carbonization GrapHITIZATION CARBON FIBER

8. In General Carbon fiber are produced in three processing stages: 1. Stabilization 2. Carbonization 3. Graphitization

9. PAN In the stabilization stage, the PAN fibers are first stretched to align the febrile networks within each fiber axis, and they are oxidized in air at about 200 to 220C while held in tension. In carbonization the stabilized PAN-based fibers are pyrolyzed (heated) until they become transformed into carbon fibers by the elimination of O,H & N from the precursor fiber.

10. The carbonization heat treatment is usually carried out in inert atmosphere in the 1000 to 1500C range. During the carbonization process, turbostratic graphite like fibrils or ribbons are formed within each fiber that greatly increase the tensile strength of the material. In the third stage , or graphitization treatment is used if an increase in the modulus of the elasticity is desired at the expense of high tensile strength. During Graphitization, which is carried out above about 1800C , the preferred orientation of the graphite like crystallites within each fiber is increased.

11. Carbon fiber are produced from Pitch precursor as well. Production of carbon fiber is initiate by process known as polymerization , when pitch is heated at 300C, several carbon aromatic rings chain combines with Each other & generate stable sheet type 2-D structure which is known as miso-phase of pitch. This meso - phase of pitch is now wrapped around spinner while passing through die the miso-phase will aligned in the filament direction . Pitch

12. PROPERTIES Carbon fiber has very high tensile strength. It has low thermal expansion. It is a light weight material having low density. It is a good conductor of electricity. It can wear a high resistance.

13. Carbon Fibers vs. Steel Up to 75% lighter More durable/corrosion-free 3 times higher tensile strength 2 times higher stiffness Higher temperature tolerance

14. APPLICATIONS Aeronautical Industry It is mostly used in the aerospace and aircraft industries.

15. Automobile Industry Automotive body is also made up of the carbon fiber(Bonnet , bumper, engine cover, Car Body parts etc.)

16. Sports Industry It is used in making sports equipment such as light weight badminton rackets, golf stick etc.

17. Civil Engineering It is also used in civil engineering

18. Medical Field Robot for internal operations Medical instruments

19. Power Plant Field Constructing up of wind mill blades.

20. Other Industry It is used for building and construction material. Rechargeable batteries and fuel cell electrodes. Portable powers.

21. Carbon Fiber Markets

22. ADVANTAGES It has long working life. It’s density is less than density of steel. It is insensitive to change in temperature. It’s properties is much better than any of the other metals. It’s compressive strength is greater than all the reinforcing material.

23. DISADVANTAGES It is very costly. It is little bit harmful for the human body as it cause some form of cancer of the lungs.

24. DISCUSSION

25. REFRENCES www.eisenmann.com/... CarbonFiber .../ Eisenmann_ CarbonFiber _en. pdf http://www.slideshare.net/ranasajjad484/carbon-fiber1 http://www.dragonplate.com/sections/technology.asp http://www.indianexpress.com/news/india-gets-first-carbon-fibre-plant/616481/

26. THANKS Feel free to ask any question.