Carbon Nanotubes as Machine Elements – A Critical Assessment
نویسندگان
چکیده
Gears, Bearings, Springs, Fasteners etc. are some of the typical machine elements used to build machines and mechanical systems. The function of these machine elements is to transmit motion, to support moving members, to store energy, to join two components etc. Carbon nanotubes can be used as these machine elements when building nano-machines or nano-mechanical systems. In this paper we review and do a critical assessment of past work done on use of carbon nanotube as machine elements. The suitability, advantages and limitation of carbon nanotube for each category of machine elements is discussed. The paper also discusses future directions of research in building nano-machines and nano-mechanical systems using carbon nanotube based machine elements.
منابع مشابه
The Attitude of Variation of Elastic Modules in Single Wall Carbon Nanotubes: Nonlinear Mass-Spring Model
The examination of variation of elastic modules in single wall carbon nanotubes (SWCNTs) is the aim of this paper. Full nonlinear spring-like elements are employed to simulate specific atomic structures in the commercial code ABAQUS. Carbon atoms are attached to each node as a mass point using atomic mass of carbon atoms. The influence of dimensions such as variation of length, diameter, aspect...
متن کاملStudy the stability of Si, Ge, Fe and Co in the interior surface of metallic carbon nanotube for hydrogen storage
In this article, we have performed calculations for studying the stability of the carbon group elements such as Si and Ge and also the magnetic elements like Fe and Co via first principle investigations. We found that Si and Ge decoupled from the interior surface of carbon nanotubes, this fact was independent in curvature, radius, conductivity and numbers of atoms in the carbon nanotubes. But t...
متن کاملThe Impact of Cadmium Loading In Fe/Alumina Catalysts and Synthesis Temperature on Carbon Nanotubes Growth by Chemical Vapor Deposition Method
We evaluated the effect of Fe/Alumina Catalyst contained different Cadmium contents and two synthesis temperatures on producing carbon nanotubes by chemical vapor deposition of methane as a feedstock. X-ray powder diffraction (XRD), N2 adsorption-desorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy and Thermogravimetry analysis (TGA) were u...
متن کاملMolecular Dynamics Investigation of The Elastic Constants and Moduli of Single Walled Carbon Nanotubes
Determination of the mechanical properties of carbon nanotubes is an essential step in their applications from macroscopic composites to nano-electro-mechanical systems. In this paper we report the results of a series of molecular dynamics simulations carried out to predict the elastic constants, i.e. the elements of the stiffness tensor, and the elastic moduli, namely the Young’s and shear mod...
متن کاملLongitudinal Magnetic Field Effect on Torsional Vibration of Carbon Nanotubes
Torsional dynamic analysis of carbon nanotubes under the effect of longitudinal magnetic field is carried out in the present study. Torque effect of an axial magnetic field on a carbon nanotube has been defined using Maxwell’s relation. Nonlocal governing equation and boundary conditions for carbon nanotubes are obtained by using Hamilton’s minimum energy principle. Eringen’s nonlocal stress gr...
متن کامل