Anti-wear and friction performance of ZrO2 nanoparticles as lubricant additive--颗粒学报PARTICUOLOGY

Ma, S., Zheng, S., Cao, D., & Guo, H. (2010). Anti-wear and friction performance of ZrO2 nanoparticles as lubricant additive. Particuology, 8(5), 468-472. https://doi.org/10.1016/j.partic.2009.06.007

Anti-wear and friction performance of ZrO₂ nanoparticles as lubricant additive

Shiyu Ma, Shaohua Zheng^*, Duxia Cao, Hongna Guo

School of Materials and Engineering, University of Jinan, Jinan, Shandong 250022, China

10.1016/j.partic.2009.06.007

Volume 8, Issue 5, October 2010, Pages 468-472

Received 26 December 2008, Revised 4 June 2009, Accepted 23 June 2009, Available online 2 July 2010.

E-mail: mse_zhengsh@ujn.edu.cn

Highlights

Abstract

The surface of ZrO₂ nanoparticles was modified with silane coupling agent KH-560 by dispersing the nanoparticles in 20^# machine oil. The tribological performance of the 20^# machine oil with ZrO₂ nanoparticles was evaluated by a four-ball tester and a thrust-ring machine. The loss of the thrust-ring weight was measured by an electronic balance with a precision of 0.0001 g. The worn surface was examined under a metallographic microscope with 400-times magnification. The results showed that the average friction coefficient decreased by 27.34%, and that the weight loss of the thrust-ring indicated no wear or negative wear, the wear loss after six loads tests being −0.0163 g. The anti-wear (AW) and reducing friction (RF) abilities of the oil with ZrO₂ nanoparticles addition were considerably improved, maximizing at an additive concentration of 0.5 wt%.

Graphical abstract

Keywords

Additive; ZrO₂ nanoparticles; Boundary lubrication; Friction and wear

文章导读