By Sadegh Imani Yengejeh, Seyedeh Alieh Kazemi, Andreas Öchsner

This quantity offers a accomplished process for categorizing carbon nanotubes and their changes when it comes to nano sheets, nanotubes, microscopic and atomic variations. moreover, the cloth and geometric homes of those nano-configurations are addressed. finally, it introduces a few universal software program applications for geometry new release and several other advertisement finite point programs.

Show description

Read or Download A Primer on the Geometry of Carbon Nanotubes and Their Modifications PDF

Similar nanostructures books

From Small Fullerenes to Superlattices: Science and Applications

Lately, carbon and silicon examine has obvious an outburst of recent buildings, experimentally saw or theoretically envisioned (e. g. , small fullerenes, heterofullerenes, schwarzite, and clathrates) with beautiful homes. This e-book studies those unique futuristic species and their strength purposes and significantly examines the predicting versions and the prospective routes for his or her synthesis.

Commercializing nanomedicine : industrial applications, patents, and ethics

The nanotechnology is a fast-growing quarter with an incredible capability for novel purposes and staggering earnings, however it is dealing with a tricky second as a result of present turmoil and the doubts raised by way of these calling for a moratorium in examine actions so long as the possibly opposed results of this self-discipline usually are not totally ascertained.

Mechanics of finite deformation and fracture

"This vital paintings covers the basics of finite deformation in solids and constitutive family for various kinds of stresses in huge deformation of solids. moreover, the publication covers the fracture phenomena in brittle or quasi-brittle fabrics within which huge deformation doesn't take place. this is often supplied partly of the booklet, wherein from chapters 6 to ten current a radical step by step knowing of fracture mechanics.

Buildings for Advanced Technology

This publication bargains with the layout and building of constructions for nanoscale technological know-how and engineering study. the data supplied during this ebook comes in handy for designing and developing structures for such complex applied sciences as nanotechnology, nanoelectronics and biotechnology. The booklet outlines the know-how demanding situations targeted to every of the construction environmental demanding situations defined lower than and gives most sensible practices and examples of engineering methods to handle them:• developing and keeping serious environments: temperature, humidity, and strain• Structural vibration isolation• Airborne vibration isolation (acoustic noise)• Isolation of mechanical equipment-generated vibration/acoustic noise• cost-efficient energy conditioning• Grounding amenities for low electric interference• Electromagnetic interference (EMI)/Radio frequency interference (RFI) isolation• Airborne particulate illness• Airborne natural and chemical illness• atmosphere, protection and overall healthiness (ESH) concerns• Flexibility ideas for nanotechnology facilitiesThe authors are experts and specialists with wisdom and event in thecontrol of environmental disturbances to constructions and experimental gear.

Extra info for A Primer on the Geometry of Carbon Nanotubes and Their Modifications

Example text

5 g/cm3 [71–73]. 1. This software is used for modeling different types of CNTs. CoNTub is a computer program for determining the coordinates of these nanostructures. e. the primary bonds between two nearestneighboring atoms) are calculated by this software. Some features of the first version of CoNTub are simulating SWCNTs and MWCNTs. The most highlighted feature of the second version of this software is to generate the models of threejunctioned CNTs. 1 displays a snapshot from CoNTub software.

1. 2. The apex angles of nanocones that are made in this manner can also be given by 2 arcsin(1 − [dθ]/360), where dθ is the disclination angle in degrees. 9° [66]. © The Author(s) 2015 S. 2 Buckminsterfullerene Buckminsterfullerene (or Bucky-balls) is some kind of spherical-shaped fullerene molecule which has cage-like fused-ring configurations [67]. 3 illustrates a model of buckminsterfullerene. 3 Capped CNTs By rolling up a graphene sheet as a cylinder and capping each side of the cylinder with half of the fullerene molecule, a capped CNT is modeled.

1 Doping This random imperfection corresponds to the case where a finite number of c­ arbon atoms were replaced by silicon, nitrogen, boron, etc. 21 for the silicon atom. 22. 23. Chapter 6 Degenerated Tubes Beside carbon nanotubes, there are some other configurations of nanostructures, such as nanocones, capped CNTs, fullerene molecules, etc. 1 Carbon Nanocone Structures These specific types of nanostructures were reported to possess a wide distribution of apex angles, which support a disclination model for cone-helix structures [64].

Download PDF sample

Rated 4.71 of 5 – based on 29 votes