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Size effects of SiO2 nanoparticles as oil additives on tribology of lubricant

De‐Xing Peng (Department of Vehicle Engineering, Army Academy, Chung Li, Taiwan)
Cheng‐Hsien Chen (Department of Vehicle Engineering, Army Academy, Chung Li, Taiwan)
Yuan Kang (Department of Mechanical Engineering, Chung Yuan Christian University, Chung Li, Taiwan)
Yeon‐Pun Chang (Department of Mechanical Engineering, Chung Yuan Christian University, Chung Li, Taiwan)
Shi‐Yan Chang (Department of Mechanical Engineering, Chung Yuan Christian University, Chung Li, Taiwan)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 9 March 2010

4841

Abstract

Purpose

The purpose of this paper is to investigate the tribological properties of liquid paraffin with SiO2 nanoparticles additive made by a sol‐gel method.

Design/methodology/approach

The tribological properties of the SiO2 nanoparticles as an additive in liquid paraffin are measured using a ball‐on‐ring wear tester to determine the optimal additive concentration. The mechanism that wear and friction are reduced is studied using scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), and atomic force microscope (AFM).

Findings

Experimental results indicate that the sizes of the synthesized SiO2 nanoparticles are distributed uniformly and that the optimal concentrations of SiO2 nanoparticles in liquid paraffin is associated with better tribological properties than pure paraffin oil, and an anti‐wear (AW) ability that depends on the particle size.

Originality/value

It is shown in the paper that by reducing friction and AW, the lubricant prepared by the methods described can prolong operating hours of machinery.

Keywords

Citation

Peng, D., Chen, C., Kang, Y., Chang, Y. and Chang, S. (2010), "Size effects of SiO2 nanoparticles as oil additives on tribology of lubricant", Industrial Lubrication and Tribology, Vol. 62 No. 2, pp. 111-120. https://doi.org/10.1108/00368791011025656

Publisher

:

Emerald Group Publishing Limited

Copyright © 2010, Emerald Group Publishing Limited

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