An investigation on tribological properties of graphite nanosheets as oil additive

An investigation on tribological properties of graphite nanosheets as oil additive Graphite nanosheets with average diameter of 500 nm and thickness about 15 nm were prepared by stirring ball milling. The tribological behavior of the graphite nanosheets as additive in paraffin oil were investigated with a four-ball and a pin-on-disk friction and wear tester. The wear surfaces of the steel ball lubricated with the additive-containing paraffin oil were analyzed by means of scanning electron microscopy (SEM). It has been found that the graphite nanosheets as additive in oil at proper concentration show better tribological properties than pure paraffin oil. The load-carrying capacity and antiwear ability of the lubricating oil were improved. Moreover, the friction coefficient of the lubricating oil was decreased by the addition of the graphite nanosheets. The optimal concentration of the additive in paraffin oil is about 1.0 × 10 −2 wt.%. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Wear Elsevier

An investigation on tribological properties of graphite nanosheets as oil additive

Wear, Volume 261 (2) – Jul 31, 2006

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Publisher
Elsevier
Copyright
Copyright © 2005 Elsevier B.V.
ISSN
0043-1648
eISSN
1873-2577
D.O.I.
10.1016/j.wear.2005.09.010
Publisher site
See Article on Publisher Site

Abstract

Graphite nanosheets with average diameter of 500 nm and thickness about 15 nm were prepared by stirring ball milling. The tribological behavior of the graphite nanosheets as additive in paraffin oil were investigated with a four-ball and a pin-on-disk friction and wear tester. The wear surfaces of the steel ball lubricated with the additive-containing paraffin oil were analyzed by means of scanning electron microscopy (SEM). It has been found that the graphite nanosheets as additive in oil at proper concentration show better tribological properties than pure paraffin oil. The load-carrying capacity and antiwear ability of the lubricating oil were improved. Moreover, the friction coefficient of the lubricating oil was decreased by the addition of the graphite nanosheets. The optimal concentration of the additive in paraffin oil is about 1.0 × 10 −2 wt.%.

Journal

WearElsevier

Published: Jul 31, 2006

References

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