Tribological Behavior of Graphite Encapsulated Nickel Nanoparticles Formed by Ball-Milling and Annealing Method

Article Preview

Abstract:

Graphite encapsulated nickel nanoparticles were prepared by ball-milling and subsequent annealing a mixture of expanded graphite and nickel powders. The products were characterized by transmission electron microscope (TEM), and their tribological behavior used as lubricating additive was investigated by using a high-temperature tribo-tester. The morphology of the worn tribo-surfaces was observed by scanning electron microscope (SEM). The results show that as-prepared graphite encapsulated nickel nanoparticles with a size range of 10-150 nm have a marked anti-friction and wear resistance effect, and the larger the applied load, the lower the friction coefficient and the wear severity.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

214-217

Citation:

Online since:

July 2012

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] H.Z. Wo, K.H. Hu, X.G. Hu, Tribological properties of MoS2 nanoparticles as additive in machine oil, Tribology24 (2004) 33-37.

Google Scholar

[2] J.X. Zhang, K. Liu, X.G. Hu, Effect of ultra-dispersed diamond nanoparticles as additive on the tribological properties of 15W/30 engine oil, Tribology, 2002, 22 (2002) 44-48.

Google Scholar

[3] J. F. Zhou, Z.J. Zhang, X.B. Wang, Investigation of the tri-bological behavior of oil-soluble Cu nanoparticles as additive in liquid paraffin, Tribology 20 (2000) 123-126.

Google Scholar

[4] H.D. Huang, J. P. Tu, L.P. Gan, T. Z. Zou, C.Z. Li, X.B. Zhao, Preparation and tribological properties of graphite nanosheets as additive in liquid paraffin, Tribology 25(2005) 312-316.

Google Scholar

[5] F. Li, F. Y. Yan, L. G. Yu, The tribological behaviors of copper-coated graphite filled PTFE composites, Wear 237 (2000) 33-38.

DOI: 10.1016/s0043-1648(99)00303-8

Google Scholar

[6] L. P. Ning, J.B. Wang, Effect of copper and graphite on the mechanical and tribological properties of Fe-based oil-containing self-lubricating composites, Tribology 21(2001) 335-339.

Google Scholar

[7] B. Bokhonov, M. Korchagin, The formation of graphite encapsulated metal nanoparticles during mechanical activation and annealing of soot with iron and nickel, J. Alloys Compd. 333 (2002) 308-320.

DOI: 10.1016/s0925-8388(01)01741-8

Google Scholar

[8] P. M. Craig, A. W. Michael, Ball milling and annealing graphite in the presence of cobalt, Carbon 42 (2004) 2179-2186.

DOI: 10.1016/j.carbon.2004.04.028

Google Scholar