CARBON FIBRES
ABSTRACT
Steel and other hard construction materials have revolutionized the field of industry. Now, a stage has come that there is a need of a better material to catch up with the growing needs and demands of the modern society. This need has bought up a newer material to the field which is now known as Carbon Fibres. Carbon fibre is one of the latest reinforcement materials used in composites. It's a real hi-tech material, which provides very good structural properties, better than those of any metal. Carbon fibre has a tensile strength almost 3 times greater than that of steel, yet is 4.5 times less dense. Carbon fibers are carbon fibres with values of Youngâ„¢s modulus between 150 and 275 to 300 GPa.

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CARBON FIBRES
PROPERTIES
 High strength
 Light weight
 Stiffness
 Corrosion resistant
APPLICATIONS
CLASSIFICATION OF CARBON FIBRES
 Based on carbon content
 Based on method of production
Based On Carbon Content
Based On Method Of Production
Production Of Carbon Fibre
STEPS INVOLVED:-
 Oxidative stabilization [200-300⁰C]
 Carbonization (non-oxidative) [1000-1500⁰C]
 Graphitization (non-oxidative) [1500-2500⁰C]
From Petroleum Pitch
Oxidative Stablization
Carbonization
 Volatiles
 Parallel ring arrangement
Two steps are involved:
 Dehydrogenation
 Denitrogenation
Graphitization

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