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Low Temperature Physics / Volume 36 / Issue 5

Low Temp. Phys. 36, 365 (2010); http://dx.doi.org/10.1063/1.3432241 (5 pages)

Low-temperature radial thermal expansion of single-walled carbon nanotube bundles saturated with nitrogen

A. V. Dolbin1, V. B. Esel’son1, V. G. Gavrilko1, V. G. Manzhelii1, S. N. Popov1, N. A. Vinnikov1, and B. Sundqvist2

1B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
2Department of Physics, Umea University, SE-901 87 Umea, Sweden

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The effect of N2 impurity on the radial thermal expansion coefficient αr of single-walled carbon nanotube bundles has been investigated in the temperature interval 2.2–43 K by the dilatometric method. Saturation of nanotube bundles with N2 sharply increased the positive values of αr in the entire experimental temperature range and resulted in a very high, wide maximum in the thermal expansion coefficient αr(T) at T ∼ 28 K. Low-temperature impurity desorption from N2-saturated powder consisting of bundles of single-walled carbon nanotubes with open and closed ends has been investigated.

© 2010 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. LOW-TEMPERATURE DESORPTION OF N2 IMPURITY FROM CNT POWDER
    1. Experimental technique
    2. Results and discussion
  3. RADIAL THERMAL EXPANSION OF N2 -SATURATED SWNT BUNDLES
    1. Experimental technique
    2. Results and discussion
  4. CONCLUSIONS

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KEYWORDS and PACS

Keywords

carbon nanotubes, desorption, impurities, nitrogen, thermal expansion

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3432241

PUBLICATION DATA

ISSN

1063-777X (print)  
1090-6517 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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