Introduction To Carbon Nanotubes
INTRODUCTION
Carbon nanotubes are the form of cylindrical carbon molecules and have such properties which make them potentially useful for a variety of applications. It has been used in many fields and other fields of material science carbon nanotubes are good conductors of heat and can also be synthesized as inorganic. For example such as electronics, optics, in material science carbon nanotubes are used as a minor s ratio in carbon fibers such as in Baseball Bats, Golf Clubs, Car Parts. As carbon nanotubes are good conductors of heat but as well as it is good insulators of heat along the tube axis. It is being seen that the simples one SWNT’s[singe walled nanotube] shows its conductivity along its axis 8 times more than that of copper which is well known for the thermal conduction and is has room temperature
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Single-walled Nanotubes (SWNTS) 2. Multi-walled Nanotubes (MWNTS) SINGLE-WALLED NANOTUBES (SWNTS) The single-walled carbon nanotube (SWNT) consists of a single atomic layer thick sheet of grapheme which rolled into a seamless cylinder and its diameter is nearly equal to 1 nanometer and length may vary to few millions of meters. MULTI-WALLED NANOTUBES (MWNT) The Multi-walled nanotubes (MWNT) consist of multiple rolled layer of graphite. Two models can be used to describe the structures of multi-walled nanotubes. In the Russian Doll model, various sheets of graphite are arranged in concentric cylinders whereas in Parchment model, a single sheet of graphite is rolled around itself..The unique mechanical properties of multi-walled nanotubes allow it as a movable arms in coming Nano mechanical devices. OTHER CARBON NANOTUBE STRUCTURES Torus: A doughnut shape carbon nanotube. It has many unique properties, such as magnetic moments 1000 times larger than SWNT and MWNT. Properties such as magnetic moment, thermal stability may vary widely depending on radius of the torus and radius of the
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