Carbon fiber is a thin strand composed mainly of carbon atoms that is stronger and lighter than steel. It is made through a process of spinning plastic fibers into filaments, stabilizing and carbonizing them through heating, and then surface treating and sizing the fibers. Carbon fiber has very high strength-to-weight ratio, rigidity, corrosion and fatigue resistance, but is brittle. It is used to reinforce composite materials and in high-temperature structural applications like aircraft and cars due to its low density, strength and heat resistance compared to steel.

1. PRESENTATION
ON
CARBON Ashfaque Ahmed
15-ME-TLE05
CARBON FIBER

2. INTRODUCTION:
Also Called graphite fiber.
It is in the form of several long strands of a materils mainly
composed by carobn atoms.
Each strand is 0.005-0.010mm thick in diameter.
First made by Dr. Roger Bacon.
Its density if much lower than the density of steel.
CARBON FIBER

3. PHYSICAL PROPERTIES
High Strength to weight ratio
Rigidity
Corrosion resistance
Electrical Conductivity
Fatigue Resistance
Good tensile strength but
Brittle
Fire Resistance/Not flammable
High Thermal Conductivity in
some forms
• Low coefficient of
thermal expansion
• Non poisonous
• Biologically inert
• X-Ray Permeable
• Self Lubricating
• Excellent EMI
(Electromagnetic
Interference) Shielding
Property
• Relatively Expensive
• Requires specialized
experience and
equipment to use.
CARBON FIBER

4. ADVANTAGES:
It has the greatest compressive strength of all reinforcing materils.
High strength to weight ratio.
Low coefficient of thermal expansion.
Its density if much lower than the density of steel.
CARBON FIBER

5. APPLICATION:
Used to reinforce composite materials.
Used structurally in high-temperature applications.
As an electrode with high surface area and impeccable corrosion
resistance.
Anti-static component.
CARBON FIBER

6. APPLICATION:
CARBON FIBER

7. MANUFACTURING:
Spinning: A polyacylonittile plastic is spun into into fibers which are then
washed and stretched to the desired diameter.
Stabilizing: Fibers are heated with O2 to make their bonding more thermally
stable.
Carbonizing: Fibers then are heated without oxygen, they lose non-carbon
atoms and bonded carbon crystals are made.
Treating Surface: The surface is slightly oxidized
Sizing: fibers are coated and wounded into bobbins.
CARBON FIBER

8. CARBON FIBER

9. THANKS
CARBON FIBER

10. QUESTION:
Q1: Describe manufacturing process of Carbon Fiber and express its
uses and application in daily use.
Q2: Why carbon has superior than steel/other metals in concerned of
mechanical properties?
Q3: Enlist physical properties of Carbon fibers and give detail
description on its tensile properties.
CARBON FIBER