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

Author:

Demas Nicholaos G.1ORCID,Erck Robert A.1,Lorenzo-Martin Cinta1ORCID,Ajayi Oyelayo O.1,Fenske George R.1

Affiliation:

1. Argonne National Laboratory, ES 212, 9700 South Cass Ave., Argonne, IL 60439, USA

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.

Funder

U.S. Department of Energy

Publisher

Hindawi Limited

Subject

General Materials Science

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