0
research-article

The effect of nanoparticle functionalization on lubrication performance of nanofluids dispersing silica nanoparticles in an ionic liquid

[+] Author and Article Information
Cengiz Yegin

Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843
cengiz.yegin@gmail.com

Wei Lu

Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843
weilu08@yahoo.com

Bassem Kheireddin

Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843
kheireddinb@gmail.com

Ming Zhang

Department of Polymer Engineering, University of Akron, Akron, OH 44325
brightzhang@gmail.com

Peng Li

Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843
lipeng0503@gmail.com

Younjin Min

Department of Polymer Engineering, University of Akron, Akron, OH 44325
ymin@uakron.edu

Hung-Jue Sue

Department of Mechanical Engineering, Texas A&M University, College Station TX 77843
hjsue@tamu.edu

Mufrettin Murat Sari

Technology Division, Defense Science Institute, Turkish Military Academy, Ankara 06654, Turkey
mufrettin@gmail.com

Mustafa Akbulut

Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843
makbulut@tamu.edu

1Corresponding author.

ASME doi:10.1115/1.4035342 History: Received June 01, 2016; Revised October 24, 2016

Abstract

Recently, ionic liquids (ILs) have received an increasing attention as lubricants owing to their intriguing properties such as tunable viscosity, high thermal stability, low emissions, non-flammability, and corrosion resistance. In this work, we investigate how the incorporation of octadecyltrichlorosilane (OTS) functionalized silica nanoparticles (NPs) in 1-butyl-3-methylimidazolium (trifluoromethysulfony)imide, influences the tribological properties and rheological properties of IL under boundary lubrication and elastohydrodynamic conditions, respectively. It was found that the coefficient of friction depended on the concentration of NPs in IL with a concave upward functional trend with a minimum at 0.05 wt.% for bare silica NPs and at 0.10 wt.% for OTS-silica NPs. For steel-steel sliding contact, the presence of functionalized nanoparticles in IL at the optimum concentration decreased the coefficient of friction by 37% compared to IL and 17% compared to IL with bare silica NPs. While IL with bare NPs demonstrated a shear thinning behavior for all concentrations, IL with functionalized NPs showed a Newtonian behavior at low concentrations and shear thinning behavior at high concentrations. Overall, this study provides new insights into the anti-friction and anti-wear additives for lubrication systems involving ionic liquids.

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