Anti-wear and friction-reduction mechanism of Sn and Fe nanoparticles as additives of multialkylated cyclopentanes under vacuum condition

被引：56
作者：
Zhang, Songwei [1 ,2 ]
Hu, Litian [1 ]
Feng, Dapeng [1 ]
Wang, Haizhong [1 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
VACUUM | 2013年 / 87卷
基金：
中国国家自然科学基金;
关键词：
Vacuum; Sn nanoparticles; Fe nanoparticles; Shear modulus; Crystal structure; Lubricant additives; TRIBOLOGICAL PROPERTIES; ZNO NANOPARTICLES; CU NANOPARTICLES; LUBRICATION; BEHAVIOR;
D O I：
10.1016/j.vacuum.2012.07.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of Sn and Fe nanoparticles as additives of multialkylated cyclopentanes (MACs) was investigated in vacuum ( similar to 10(-4) Pa) by a vacuum four-ball tribometer. Results showed that the steel balls exhibited the transient seizure-like high friction when lubricated with MACs base oil in vacuum, while introducing Sn and Fe nanoparticles could effectively eliminate it. Moreover, Sn nanoparticles were more effective on friction-reduction and frictional heat reduction, but less effective on anti-wear ability in comparison with Fe nanoparticles. Confirmed by the surface analysis, the improved tribological performances should be ascribed to a protective film with low shear stress and hardness formed on the worn surface. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：75 / 80
页数：6
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