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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
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.
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页码:467 / 472
页数:6
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