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Radial thermal expansion of single-walled carbon nanotube bundles at low temperatures.
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2008 (English)In: Fizika Nizkikh Temperatur, ISSN 0132-6414, Vol. 34, no 8, p. 860-862Article in journal (Refereed) Published
Abstract [en]

For the first time, the linear coefficient of radial thermal expansion is measured on a system of carbon single-walled nanotube (SWNT) bundles at low temperatures (2.2–120 K). The measurements are performed using a dilatometer with a sensitivity of 2×10−9 cm. A cylindrical sample 7 mm high and 10 mm in diameter was obtained by compressing powder. The resulting bundles of nanotubes are oriented perpendicular to the sample axis. The starting powder consisted of over 90% SWNTs with outer diameter 1.1 nm, the length varying in the range 5–30 µm. A change of sign of the radial thermal expansion coefficient at 5.5 K is observed.

Place, publisher, year, edition, pages
2008. Vol. 34, no 8, p. 860-862
Keywords [en]
Carbon nanotubes, Single walled carbon nanotubes, SWNT, thermal expansion, radial expansion, low temperatures
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:umu:diva-11388DOI: 10.1063/1.2967518OAI: oai:DiVA.org:umu-11388DiVA, id: diva2:151059
Note
Simultaneous publication in Low Temperature Physics vol. 34, pages 678-679 (2008).Available from: 2008-12-17 Created: 2008-12-17 Last updated: 2018-06-09Bibliographically approved

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Publisher's full texthttp://link.aip.org/link/?LTPHEG/34/678/1

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Sundqvist, Bertil

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