Preparation and tribological properties of Ni-doped muscovite composite particles as a lubricant additive infor lithium grease

被引：0

作者：

Du P. ^{[1
]}

Chen G. ^{[1
]}

Song S. ^{[1
]}

Zhu D. ^{[2
]}

Cheng P. ^{[3
]}

Xiao D. ^{[1
]}

Lin B. ^{[1
]}

机构：

[1] Department of Oil Application & Management Engineering, Logistical Engineering University PLA, Chongqing

[2] College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, Sichuan

[3] Department of Chemical Materials and Engineering, Logistical Engineering University PLA, Chongqing

来源：

Mocaxue Xuebao/Tribology | 2017年 / 37卷 / 01期

关键词：

Composite particles; Friction-reduction and anti-wear; Lubricant additives; Muscovite;

D O I：

10.16078/j.tribology.2017.01.003

中图分类号：

学科分类号：

摘要：

Ni-doped muscovite (Mu) composite particles (Mu/Ni) were prepared by a liquid phase reduction method. The morphologies, phase composition and elementary composition of the particles were characterized by scanning electron microscopy, x-ray diffraction and energy dispersive spectroscopy. The tirbological properties of Mu/Ni and Mu as lubricant additives for lithium grease were investigated and compared using a block-ring tribotester. The roughness, 2D and 3D morphologies and elementary composition of worn surface were analyzed to explore the friction-reduction and anti-wear mechanism. The results show that the Ni nanoparticles were evenly distributed on the surface of muscovite. Both Mu/Ni and Mu effectively improved the tirbological properties of lithium grease and Mu/Ni presented better friction-reduction and anti-wear performance than that of Mu. The friction coefficient was decreased by 67.9% as compared to lithium grease. The excellent tribological performance of Mu/Ni was attributed to the layer structure of muscovite as well as the formation of lubricating film composed of elements O, Fe, Si, Al and Ni on the worn surfaces. © 2017, Science Press. All right reserved.

引用

页码：19 / 26

页数：7

共 26 条

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