Exploring the effect of nanoparticle size on the tribological properties of SiO2 / polyalkylene glycol nanofluid under different lubrication conditions

被引：55

作者：

Liu, Xiangyu ^{[1
]}

Xu, Nan ^{[1
]}

Li, Weimin ^{[1
]}

Zhang, Ming ^{[1
]}

Chen, Lvfeng ^{[3
]}

Lou, Wenjing ^{[2
]}

Wang, Xiaobo ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[2] Qingdao Ctr Resource Chem & New Mat, Qingdao 266000, Peoples R China

[3] Petrochina Lubricant Co, Lanzhou 730000, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2017年 / 109卷

基金：

中国国家自然科学基金;

关键词：

Nanoparticle additives; Nanofluids; Synergistic effect; Lubrication condition; LIQUID PARAFFIN; FRICTION; MOS2; OIL; ADDITIVES; WEAR; BEHAVIOR; GROWTH;

D O I：

10.1016/j.triboint.2017.01.007

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The influence of nanoparticle size on the tribological performances of the SiO2/PAG (Polyalkylene glycol) nanofluids under different lubricating condition were investigated. The silica nanoparticles displayed strong size-oriented adaptability to the lubricating conditions. Under lower frequency, the smaller nano-SiO2 could significantly improve the tribological performances, this is due to the formation of tribofilm with stronger intrinsic mechanical properties. However, the lubricating oil containing large nano-SiO2 showed better friction reducing property under higher frequency, it because the flow features of nanofluids has become a dominating factor affecting the tribological performance. What's more, compared with the nano-additives with the uniform size, the mixed nano-additives displayed better anti-wear and friction-reducing properties.

引用

页码：467 / 472

页数：6

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