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Preparation and tribological properties of BN/calcium borate nanocomposites as additive in lubricating oil

Yanfei Yang (Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan, China)
Xiaobo Wang (College of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi, China)
Sen Mei (Department of Nano and Hybrid Materials SINTEF Materials and Chemistry, Oslo, Norway)
Xing Zhu (Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan, China)
Shiqiang Chen (Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan, China)
Peng Xiong (Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan, China)
Zhihai Hu (Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan, China)
Kun Xiong (Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan, China)
Dong Song Yuan (Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 8 January 2018

222

Abstract

Purpose

The purpose of this paper is to investigate the tribological performance and mechanisms of BN/calcium borate nanocomposites (BCBNs) as additives in lubricating oil.

Design/methodology/approach

BCBNs were prepared by heterogeneous deposition method. And the morphology and structure of samples were analysed by transmission electron microscopy, Fourier transform infrared spectra and X-ray powder diffraction pattern. The maximum non-seizure load (PB) of samples was tested using four-ball friction tester. The average friction coefficients and wear tracks were obtained. In addition, tribological mechanism was also investigated using optical microscope, energy dispersive spectroscopy and X-ray photoelectron spectroscope.

Findings

It was found that the nanocomposites present core-shell nanostructure with the thickness of shell around 12 nm and the diameter of particles 100-200 nm, and tribological tests indicate that the PB value of BCBNs was increased by 113 per cent, whereas the average friction coefficient was decreased by 23.6 per cent and the bloom’s wear area was also decreased by 25.2 per cent.

Originality/value

This paper involves investigation on tribological properties and mechanism of the BCBNs with core-shell structure.

Keywords

Acknowledgements

This work was supported by the National Natural Science Foundation of China (51172066), Natural Science Foundation of Hubei province (2009CDB366) and project of Hubei Polytechnic University (16xjz06R).

Citation

Yang, Y., Wang, X., Mei, S., Zhu, X., Chen, S., Xiong, P., Hu, Z., Xiong, K. and Yuan, D.S. (2018), "Preparation and tribological properties of BN/calcium borate nanocomposites as additive in lubricating oil", Industrial Lubrication and Tribology, Vol. 70 No. 1, pp. 105-114. https://doi.org/10.1108/ILT-10-2016-0255

Publisher

:

Emerald Publishing Limited

Copyright © 2018, Emerald Publishing Limited

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