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Proceedings Paper

Schematics and simulations for nanoscale engine based on nanotube encapsulating condensed gases
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Paper Abstract

We investigated a carbon nanotube (CNT) oscillator controlled by the thermal gas expansion using classical molecular dynamics simulations. When the temperature rapidly increased, the force on the CNT oscillator induced by the thermal gas expansion rapidly increased and pushed out the CNT oscillator. As the CNT oscillator extruded from the outer nanotube, the suction force on the CNT oscillator increased by the excess van der Waals vdW energy. When the CNT oscillator reached at the maximum extrusion point, the CNT oscillator was encapsulated into the outer nanotube by the suction force. Therefore, the CNT oscillator could be oscillated by both the gas expansion and the excess vdW interaction. As the temperature increased, the amplitude of the CNT oscillator increased. At the high temperatures, the CNT oscillator escaped from the outer nanotube, because the force on the CNT oscillator due to the thermal gas expansion was higher than the suction force due to the excess vdW energy. By the appropriate temperature controls, such as the maximum temperature, the heating rate, and the cooling rate, the CNT oscillator could be operated.

Paper Details

Date Published: 9 September 2008
PDF: 9 pages
Proc. SPIE 7037, Carbon Nanotubes and Associated Devices, 70371C (9 September 2008); doi: 10.1117/12.793981
Show Author Affiliations
Jeong-Won Kang, Chungju National Univ. (Korea, Republic of)
Chung Sang Won, Chungju National Univ. (Korea, Republic of)
Young Gyu Choi, Chungju National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7037:
Carbon Nanotubes and Associated Devices
Manijeh Razeghi; Didier Pribat; Young Hee Lee, Editor(s)

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