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About Carbon Fiber

Posted by Barbara FU on

T300 carbon fiber

Carbon Fiber is a polymer and is sometimes known as graphite fiber. It is a very strong material that is also very lightweight. Carbon fiber is five-times stronger than steel and twice as stiff. Though carbon fiber is stronger and stiffer than steel, it is lighter than steel; making it the ideal manufacturing material for many parts. These are just a few reasons why carbon fiber is favored by engineers and designers for manufacturing.
Carbon fiber is made of thin, strong crystalline filaments of carbon that is used to strengthen material. Carbon fiber can be thinner than a strand of human hair and gets its strength when twisted together like yarn. Then it can be woven together to form cloth and if needed to take a permanent shape, carbon fiber can be laid over a mold and coated in resin or plastic.
carbon fiber products
On top of being strong, carbon fiber:

● Is high in stiffness

● Is high in tensile strength

● Has a low weight to strength ratio

● Is high in chemical resistance

● Is temperature tolerant to excessive heat

● Has low thermal expansion

Because of this, carbon fiber is very popular in many industries such as aerospace, automotive, military, and recreational applications.
A Brief History on Carbon Fiber
Carbon fiber dates back to 1879 when Thomas Edison baked cotton threads or bamboo silvers at high temperatures, which carbonized them into an all-carbon fiber filament. By 1958, high-performance carbon fibers were invented just outside of Cleveland, OH. Although they were inefficient, these fibers contained around 20% carbon and had low strength and stiffness properties.
about carbon fiber
In 1963 a new manufacturing process was developed at a British research center, which is where carbon fiber’s strength potential was realized.

How is Carbon Fiber Made: An Overview of The Carbon Fiber Manufacturing Process
Carbon fiber is made from a process that is part chemical and part mechanical. It starts by drawing long strands of fibers and then heating them to a very high temperature without allowing contact to oxygen to prevent the fibers from burning. This is when the carbonization takes place, which is when the atoms inside of the fibers vibrate violently, expelling most of the non-carbon atoms. This leaves a fiber composed of long, tightly inter-locked chains of carbon atoms with only a few non-carbon atoms remaining.

A typical sequences used to form carbon fibers from polyacrylonitrile involves spinning, stabilizing, carbonizing, treating the surface and sizing.

Drive Shaft
What Can Be Made With Carbon Fiber?
Almost anything. If you would like a carbon fiber pint glass, that can be made. ICE has made many different shapes with carbon fiber and other composites, including:

Tubing

carbon fiber tube


Bike frames

carbon fibre bike frame

Propeller blades

carbon fiber drone


Sheet

carbon fiber sheet

Aircraft Wings

carbon fiber aircraft

Car components

carbon fiber trace car
According to an article at energy.gov, carbon fiber composites could reduce passenger car weight by 50%, which would improve fuel efficiency by nearly 35% without compromising the performance of the car or the safety of its passengers.

References:

http://www.zoltek.com/carbonfiber/how-is-it-made/
http://www.madehow.com/Volume-4/Carbon-Fiber.html
http://auto.howstuffworks.com/fuel-efficiency/fuel-economy/carbon-fiber-oil-crisis1.htm
http://en.wikipedia.org/wiki/Carbon_%28fiber%29