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Low-Friction Nanoscale Linear Bearing Realized from Multiwall Carbon Nanotubes
Abstract
We demonstrate the controlled and reversible telescopic extension of multiwall carbon nanotubes, thus realizing ultralow-friction nanoscale linear bearings and constant-force nanosprings. Measurements performed in situ on individual custom-engineered nanotubes inside a high-resolution transmission electron microscope demonstrated the anticipated van der Waals energy–based retraction force and enabled us to place quantitative limits on the static and dynamic interwall frictional forces between nested nanotubes. Repeated extension and retraction of telescoping nanotube segments revealed no wear or fatigue on the atomic scale. Hence, these nanotubes may constitute near perfect, wear-free surfaces.
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Cited by
Anomalous thermal conductivity enhancement in nanotube suspensions
Choi, S. U. S., Zhang, Z. G., Yu, W., Lockwood, F. E., & Grulke, E. A. (2001) · Applied Physics Letters · doi:10.1063/1.1408272 · Cited by 2,769
Synthetic Molecular Motors and Mechanical Machines
Kay, E. R., Leigh, D. A., & Zerbetto, F. (2007) · Angewandte Chemie International Edition · doi:10.1002/anie.200504313 · Cited by 2,609
Rotational actuators based on carbon nanotubes
Fennimore, A. M., Yuzvinsky, T. D., Han, W.-Q., Fuhrer, M. S., Cumings, J., & Zettl, A. (2003) · Nature · doi:10.1038/nature01823 · Cited by 1,161
Self-citationThe revolutionary creation of new advanced materials—carbon nanotube composites
Lau, A. K.-T., & Hui, D. (2002) · Composites Part B: Engineering · doi:10.1016/s1359-8368(02)00012-4 · Cited by 1,020
Sensors and actuators based on carbon nanotubes and their composites: A review
Li, C., Thostenson, E. T., & Chou, T.-W. (2008) · Composites Science and Technology · doi:10.1016/j.compscitech.2008.01.006 · Cited by 934
Metadata
- Authors
- Cumings, J., & Zettl, A.
- Venue
- Science
- Published
- 2000-07-28
- Volume
- 289
- Issue
- 5479
- Pages
- 602-604
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2171614186
- Cited by
- 1,288
- References
- 0
- FWCI
- 27.03
- Type
- journal article
- Language
- en
- Open access
- closed
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