(RETRACTED PAPER) Survey of Thermal Conductivity Carbon Nanotubes(TCCN) The Publisher and Editor retract this article based on the Publication Ethics
Publish Year: 1397
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_CHAL-6-1_001
تاریخ نمایه سازی: 31 تیر 1401
Abstract:
(RETRACTED PAPER) The Publisher and Editor retract this article based on the Publication Ethics In this project,Bio-based carbon nanotubes (CNTs) have received considerable research attention due to their comparative advantages of high level stability, simplistic use, low toxicity and overall environmental friendliness. New potentials for improvement in heat transfer applications are presented due to their high aspect ratio, high thermal conductivity and special surface area. Phonons have been identified as being responsible for thermal conductivities in carbon nanotubes. Therefore, understanding the mechanism of heat conduction in CNTs involves investigating the difference between the varieties of phonon modes and knowing the kinds of phonon modes that play the dominant role. In this review, a reference to a different number of studies is made and in addition, the role of phonon relaxation rate mainly controlled by boundary scattering and three-phonon Umklapp scattering process was investigated. Results show that the phonon modes are sensitive to a number of nanotube conditions such as: diameter, length, temperature, defects and axial strain. At a low temperature (<۱۰۰K) the thermal conductivity increases with increasing temperature. A small nanotube size causes phonon quantization which is evident in the thermal conductivity at low temperatures.
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Authors
Hassan Gheisari Dehsheikh
Department of Mechanical and Industrial, Lenjan Branch, Islamic Azad University, Isfahan, Iran
Ali Najafi
Department of Civil Engineering, Shahid Chamran University, Ahvaz, Iran
Farkhonde Zilabi
Department of Mechanical and Industrial, Lenjan Branch, Islamic Azad University, Isfahan, Iran