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Title: Experimental Evaluation of Oxide Nanoparticles as Friction and Wear Improvement Additives in Motor Oil

Abstract

The effect of two nanoparticle oxides on friction and wear was studied under laboratory test conditions using a reciprocating test machine and two test configurations. The addition of these nanoparticles in base stock oil under certain conditions reduced the coefficient of friction and improved wear, but that depended on the test configuration. Examination of the rubbed surfaces showed the pronounced formation of a tribofilm in some cases, while polishing on the surface was also observed in other cases. Contact configuration is important when oxide nanoparticles are being evaluated and the conclusions about their efficacy can be vastly different.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [1];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1341484
Alternate Identifier(s):
OSTI ID: 1420079
Grant/Contract Number:
AC02-06CH11357
Resource Type:
Journal Article: Published Article
Journal Name:
Journal of Nanomaterials
Additional Journal Information:
Journal Volume: 2017; Journal ID: ISSN 1687-4110
Publisher:
Hindawi
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; Nanoparticles

Citation Formats

Demas, Nicholaos G., Erck, Robert A., Lorenzo-Martin, Cinta, Ajayi, Oyelayo O., and Fenske, George R. Experimental Evaluation of Oxide Nanoparticles as Friction and Wear Improvement Additives in Motor Oil. United States: N. p., 2017. Web. doi:10.1155/2017/8425782.
Demas, Nicholaos G., Erck, Robert A., Lorenzo-Martin, Cinta, Ajayi, Oyelayo O., & Fenske, George R. Experimental Evaluation of Oxide Nanoparticles as Friction and Wear Improvement Additives in Motor Oil. United States. doi:10.1155/2017/8425782.
Demas, Nicholaos G., Erck, Robert A., Lorenzo-Martin, Cinta, Ajayi, Oyelayo O., and Fenske, George R. Mon . "Experimental Evaluation of Oxide Nanoparticles as Friction and Wear Improvement Additives in Motor Oil". United States. doi:10.1155/2017/8425782.
@article{osti_1341484,
title = {Experimental Evaluation of Oxide Nanoparticles as Friction and Wear Improvement Additives in Motor Oil},
author = {Demas, Nicholaos G. and Erck, Robert A. and Lorenzo-Martin, Cinta and Ajayi, Oyelayo O. and Fenske, George R.},
abstractNote = {The effect of two nanoparticle oxides on friction and wear was studied under laboratory test conditions using a reciprocating test machine and two test configurations. The addition of these nanoparticles in base stock oil under certain conditions reduced the coefficient of friction and improved wear, but that depended on the test configuration. Examination of the rubbed surfaces showed the pronounced formation of a tribofilm in some cases, while polishing on the surface was also observed in other cases. Contact configuration is important when oxide nanoparticles are being evaluated and the conclusions about their efficacy can be vastly different.},
doi = {10.1155/2017/8425782},
journal = {Journal of Nanomaterials},
number = ,
volume = 2017,
place = {United States},
year = {Mon Jan 30 00:00:00 EST 2017},
month = {Mon Jan 30 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1155/2017/8425782

Citation Metrics:
Cited by: 1work
Citation information provided by
Web of Science

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  • Here, the effect of two nanoparticle oxides on friction and wear was studied under laboratory test conditions using a reciprocating test machine and two test configurations. The addition of these nanoparticles in base stock oil under certain conditions reduced the coefficient of friction and improved wear, but that depended on the test configuration. Examination of the rubbed surfaces showed the pronounced formation of a tribofilm in some cases, while polishing on the surface was also observed in other cases. Contact configuration is important when oxide nanoparticles are being evaluated and the conclusions about their efficacy can be vastly different.
  • Developments of high performance lubricants are driven by increasingly growing industrial demands and environmental concerns. We demonstrate oil-soluble polymer brush-grafted inorganic nanoparticles (hairy NPs) as highly effective lubricant additives for friction and wear reduction. A series of oil-miscible poly(lauryl methacrylate) brush-grafted silica and titania NPs were synthesized by surface-initiated atom transfer radical polymerization. Moreover, these hairy NPs showed exceptional stability in poly(alphaolefin) (PAO) base oil; no change in transparency was observed after being kept at -20, 22, and 100°C for ≥55 days. High-contact stress ball-on-flat reciprocating sliding tribological tests at 100°C showed that addition of 1 wt% of hairy NPsmore » into PAO led to significant reductions in coefficient of friction (up to ≈40%) and wear volume (up to ≈90%). The excellent lubricating properties of hairy NPs were further elucidated by the characterization of the tribofilm formed on the flat. These hairy NPs represent a new type of lubricating oil additives with high efficiency in friction and wear reduction.« less
  • Cited by 10
  • The development of high performance lubricants has been driven by increasingly growing industrial demands and environmental concerns. Here we demonstrate oil-soluble polymer brush-grafted inorganic nanoparticles (hairy NPs) as highly effective lubricant additives for friction and wear reduction. A series of oil-miscible poly(lauryl methacrylate) brush-grafted silica and titania NPs were synthesized by surface-initiated atom transfer radical polymerization. These hairy NPs showed exceptional stability in polyalphaolefin (PAO) base oil; no change in transparency was observed after being kept at -20, 22, and 100 °C for at least 55 days. High contact stress ball-on-flat reciprocating sliding tribological tests at 100 °C showed thatmore » addition of 1 wt% of hairy NPs into PAO led to significant reductions in coefficient of friction (up to ~ 40%) and wear volume (up to ~ 90%). The excellent lubricating properties of hairy NPs were further elucidated by the characterization of the tribofilm formed on the flat. These hairy NPs represent a new type of lubricating oil additives with high efficiency in friction and wear reduction.« less