Thermal Investigations on Carbon Nanotubes by Spectroscopic Techniques
نویسندگان
چکیده
منابع مشابه
Thermal conductivity of carbon nanotubes
As the size of electronic and mzechanical devices are decreased to the micron and nanometre level, it becomes particularly important to predict the thermal transport properties of the components. Using of molecular level theories such predictions are particularly important for modelling nano-electronic devices where scaling laws may change substantially but it is most difficult to accurately me...
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In this present work, two methods for dispersing carbon nanotubes into the copper matrix were tested: a Solid Route process where CNTs are simply mixed with the copper powder and a Liquid Route process where CNTs are dispersed in a copper salt solution and then mixed with the metallic copper powder. Powders are sintered by uni-axial hot pressing process under vacuum atmosphere at 650°C and ther...
متن کاملThermal stability of carbon nanotubes probed by anchored tungsten nanoparticles.
The thermal stability of multiwalled carbon nanotubes (CNTs) was studied in high vacuum using tungsten nanoparticles as miniaturized thermal probes. The particles were placed on CNTs inside a high-resolution transmission electron microscope equipped with a scanning tunneling microscope unit. The setup allowed manipulating individual nanoparticles and heating individual CNTs by applying current ...
متن کاملThermal conductivity of single-walled carbon nanotubes
We have measured the temperature-dependent thermal conductivity k(T) of crystalline ropes of singlewalled carbon nanotubes from 350 K to 8 K. k(T) decreases smoothly with decreasing temperature, and displays linear temperature dependence below 30 K. Comparison with electrical conductivity experiments indicates that the room-temperature thermal conductivity of a single nanotube may be comparable...
متن کاملThermal Conductivity of Carbon Nanotubes with Defects
The high thermal conductivities of carbon nanotubes (CNTs) measured experimentally and predicted from theory suggest that they are good candidates for next-generation thermal management materials. The quantities of CNTs needed in applications preclude the use of pristine products. Limited work, however, has been done to study thermal transport in CNTs with defects. In this paper, the thermal co...
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ژورنال
عنوان ژورنال: Applied Sciences
سال: 2020
ISSN: 2076-3417
DOI: 10.3390/app10228159