Elasticity  in the structure of CNTs multilayer carbon nanotubes (based on nano-microelectronics  PHD (educational-research doctorate)

Researcher  and author PhD student  : Afshin Rashid

Note: Carbon atoms of a graphite plate (graphene) form a flat lattice network, in which each atom is attached to three neighboring atoms through a strong chemical bond. Due to these strong bonds, graphite-based elastic modulus is one of the largest known materials.

That's why CNTs are high-strength final fibers. SWNTs are harder than steel and are very resistant to physical force damage. Pressing on the tip of the nanotube causes it to bend, but without damaging the tip. When the force is removed, the tip returns to its original state. This feature makes CNTs very useful as a probe guide for high-resolution scanning probe microscopes. The quantity of these effects has been very difficult and an exact numerical value has not been agreed. The unauthorized end of a free nanotube can be pulled out of their equilibrium position and the force required for nanotube pressure can be measured. The current modulus of SWNTs is about 1 TeraPascal.

In the structure of CNTs multilayer carbon nanotubes, there  is unparalleled power and unparalleled capability in the electrical properties of semiconductors or excellent metal nanotubes. The special nature of carbon in conductive nanotubes is combined with the molecular deficiency of single-walled CNTs to provide them with exceptional material properties such as very high electrical and thermal conductivity in the  structure of CNTs multilayer conductive carbon nanotubes. To understand the structure of nanotubes, we assume that single-walled carbon nanotubes are obtained by piping graphene plates  Of course, in practice, the production of nanotubes is done by complex chemical methods. In fact, nanotubes are made by  placing individual carbon atoms together.

Conclusion: 

Carbon atoms A graphite plate (graphene) forms a flat lattice network, in which each atom is attached to three neighboring atoms through a strong chemical bond. Due to these strong bonds, graphite-based elastic modulus is one of the largest known materials.

Author: PhD Student  ( Afshin Rashid)

PhD student in Nano-Microelectronics at Islamic Azad University, Science and Research Branch, Tehran