Radial thermal expansion of single-walled carbon nanotube bundles at low temperatures

Details Radial thermal expansion of single-walled carbon nanotube bundles at low temperatures Radial thermal expansion of single-walled carbon nanotube bundles at low temperatures

2008-06-09

arxiv.org/abs/0806.1388v1

Fizika Nizkih Temperatur, 2008, V.34, No.8, p.860-862

Physics

Condensed Matter

Materials Science

4 pages, 1 figure

Scientific paper

10.1063/1.2967518

The linear coefficient of the radial thermal expansion has been measured on a system of SWNT bundles in an interval of 2.2 - 120K. The measurement was performed using a dilatometer with a sensitivity of 2*10-9 cm. The cylindrical sample 7 mm high and 10 mm in diameter was obtained by compressing powder. The resulting bundles of the nanotubes were oriented perpendicular to the sample axis. The starting powder contained over 90% of SWNTs with the outer diameter 1.1 nm, the length varying within 5-30 um.

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