0
research-article

Novel Tribological Behavior of hybrid MWCNTs/MLNGPs as an Additive on lithium grease

[+] Author and Article Information
M. E. Ashour

Production Engineering and Printing Technology Department, Akhbar El Yom Academy, Giza 12655, Egypt;Mechanical Design and Production Engineering Department, Cairo University, Giza 12655, Egypt
mohamed_essam_eng@yahoo.com

T. A. Osman

Mechanical Design and Production Engineering Department, Cairo University, Giza 12613, Egypt
tarek@etcp.edu.eg

A. Khattab

Mechanical Design and Production Engineering Department, Cairo University, Giza 12613, Egypt
Dralykhattab@yahoo.com

A. B. Elshalakny

Production Engineering and Printing Technology Department, Akhbar El Yom Academy, Giza 12655, Egypt;Mechanical Design and Production Engineering Department, Cairo University, Giza 12655, Egypt
eng_bakr2011@yahoo.com

1Corresponding author.

ASME doi:10.1115/1.4035345 History: Received February 06, 2016; Revised November 22, 2016

Abstract

The goal of this paper is to investigate tribological characteristics of nano graphene platelets and hybridized nano composite, of multi- walled carbon nano tubes (MWCNT.s)/ multi-layer nano graphene platelets (MLNGPs)/lithium based grease. Characterization is done through High resolution transmission electron microscopy, X-ray diffraction. while grease properties were tested using Falex four-ball testing machine. scanning electron microscopy, and Energy dispersive X-ray diffraction were utilized to characterize the lubrication mechanism and the worn surface. Results showed that 1% of MLNGPs is the optimum concentration. WSD was reduced by 66%, friction coefficient was reduced by 91%, while maximum non seizer load increased by 90 kg over ordinary lithium grease. Hybrid MWCNTs\MLNGPs was studied the optimum ratio of MLNGPs to MWCNTs was found to be 4:1.

Copyright (c) 2016 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In