نتایج جستجو برای: carbon nano tubes

تعداد نتایج: 353314  

2007
Stephen F. Bush

Sensor coverage will benefit from finding better ways to communicate among smaller sensors. Also, as development in nanotechnology progresses, the need for low-cost, robust, reliable communication among nano-machines will become apparent. Communication and signaling within newly engineered inorganic and biological nano-systems will allow for extremely dense and efficient distributed operation. ...

This paper investigates axial compression process of multi-layered tubes with circular cross-section under the axial loading in the quasi-static condition using experimental method. Some specimens are prepared in seven different groups, namely; empty carbon/epoxy composite tubes, solid carbon/epoxy composite rods, empty copper tubes, composite tubes with silicon sealant filler, concentrically s...

Journal: :Journal of Chemical Engineering and Materials Science 2013

2012
Jeongmin Hong Eugenia Stefanescu Ping Liang Nikhil Joshi Song Xue Dmitri Litvinov Sakhrat Khizroev

This letter describes the use of vertically aligned carbon nanotubes (CNT)-based arrays with estimated 2-nm thick cobalt (Co) nanoparticles deposited inside individual tubes to unravel the possibility of using the unique templates for ultra-high-density low-energy 3-D nano-magneto-electronic devices. The presence of oriented 2-nm thick Co layers within individual nanotubes in the CNT-based 3-D ...

2013
E. N. Ganesh

Carbon Nanotubes have exceptional mechanical and electrical properties. Various methods have been thoroughly investigated for the growth of CNTs. The best and the most commonly used method is Chemical Vapour Deposition (CVD). The various techniques include Reaction Chamber heating, Plasma Enhanced CVD, Hot filament CVD, Microwave CVD. The structural uniformity of carbon nanotubes produced by pl...

Journal: :journal of nanostructures 0
rouhollah jalajerdi young researchers and elite club, arak branch, islamic azad university, arak, iran davood ghanbari young researchers and elite club, arak branch, islamic azad university, arak, iran

at the first step cufe2o4 nanoparticles were synthesized by a fast and facile microwave method. the obtained nanoparticles and modified carbon nano tubes were added to poly styrene matrix. the products were characterized through fourier transform infrared spectroscopy, x-ray diffraction, and scanning electron microscopy. vibrating sample magnetometer shows nanoparticles exhibit ferromagnetic be...

2007
Chi-Hwa Wu David R. Harding

The vapor deposition of open-networked carbon nanostructures and carbon nanotubes (CNTs)-reinforced composites have been developed and studied parametrically. Carbon nanostructures, including nano-tubes, nano-foams, nanoparticles, and nano-walls, have been deposited on catalyst-assisted substrates using microwave plasma electron cyclotron resonance-chemical vapor deposition (ECR-CVD) system at ...

2007
R. Sharma

Carbon nanotubes are tiny cage like structures with great potentials in biomedical engineering and sciences. However, their great emergence in bioscience applications is not risk free. In present report several known or possible risks and limitations of carbon nanotube material in biosciences and bioengineering are documented. Major breakthroughs of carbon nanotubes such as MRI buckyballs, comp...

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