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
收藏
页码：467 / 472
页数：6
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