Tribological properties of single-walled carbon nanotube solids

Go Yamamoto; Toshiyuki Hashida; Koshi Adachi; Toshiyuki Takagi

doi:10.1166/jnn.2008.295

Tribological properties of single-walled carbon nanotube solids

Go Yamamoto, Toshiyuki Hashida, Koshi Adachi, Toshiyuki Takagi

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Binder-free single-walled carbon nanotube (SWCNT) solids were evaluated for solid lubrication applications. The steady-state friction coefficients (μ) for the SWCNT solids were found to reach values as low as 0.22-0.24, according to unidirectional sliding friction tests using Si ₃N ₄ counterparts in air. The values were slightly higher than that of bulk graphite material (μ = 0.20). SEM and Raman analyses showed that most SWCNTs that existed in the friction surface transformed into SWCNT-derived transferred film made up of amorphous carbon during sliding. The resultant friction behavior may be related to the smearing of transferred film over the contact area, which was expected to permit easy shear and then help to achieve a lubricating effect during sliding.

Original language	English
Pages (from-to)	2665-2670
Number of pages	6
Journal	Journal of Nanoscience and Nanotechnology
Volume	8
Issue number	5
DOIs	https://doi.org/10.1166/jnn.2008.295
Publication status	Published - 2008 May

Keywords

Single-walled carbon nanotube
Solid lubrication
Transferred film
Tribological properties

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10.1166/jnn.2008.295

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abstract = "Binder-free single-walled carbon nanotube (SWCNT) solids were evaluated for solid lubrication applications. The steady-state friction coefficients (μ) for the SWCNT solids were found to reach values as low as 0.22-0.24, according to unidirectional sliding friction tests using Si 3N 4 counterparts in air. The values were slightly higher than that of bulk graphite material (μ = 0.20). SEM and Raman analyses showed that most SWCNTs that existed in the friction surface transformed into SWCNT-derived transferred film made up of amorphous carbon during sliding. The resultant friction behavior may be related to the smearing of transferred film over the contact area, which was expected to permit easy shear and then help to achieve a lubricating effect during sliding.",

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AU - Yamamoto, Go

AU - Hashida, Toshiyuki

AU - Adachi, Koshi

AU - Takagi, Toshiyuki

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AB - Binder-free single-walled carbon nanotube (SWCNT) solids were evaluated for solid lubrication applications. The steady-state friction coefficients (μ) for the SWCNT solids were found to reach values as low as 0.22-0.24, according to unidirectional sliding friction tests using Si 3N 4 counterparts in air. The values were slightly higher than that of bulk graphite material (μ = 0.20). SEM and Raman analyses showed that most SWCNTs that existed in the friction surface transformed into SWCNT-derived transferred film made up of amorphous carbon during sliding. The resultant friction behavior may be related to the smearing of transferred film over the contact area, which was expected to permit easy shear and then help to achieve a lubricating effect during sliding.

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Tribological properties of single-walled carbon nanotube solids

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