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.
When you go to a sports shop you are inundated with new "graphite" based materials for sports equipment: golf clubs, tennis rackets, bicycles (frames and wheel disks), ultra light airframes feature these new lightweight materials. But, we are also familiar with graphite as being a very common and mundane substance. Graphite has long been a component of pencil lead, and is used as a basic lubricant. How is it that graphite is both a hi-tech and low-tech material? Could we take a bunch of pencil leads and epoxy them together into a cutting edge tennis racquet? Anyone who has used mechanical pencils knows that the leads break far too easily to provide a strong frame. It would seem as if there are two different kinds of graphite. In fact, this is true. When vendors market "graphite fibre" products they are usually selling a "carbon fibre" product. The correct name for the fibres used in all strengthening and reinforcing applications is carbon fibres. But, there is more to the story than just a general misconception over the term "graphite fibres." Surprisingly, if we look at a small section of graphite and carbon fibres on the atomic level they appear to be identical.
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