Boundary lubrication properties and contact mechanism of carbon/MoS2 based nanolubricants under steel/steel contact

被引：32

作者：

Upadhyay, Ram Krishna ^{[1
]}

Kumar, Arvind ^{[1
]}

机构：

[1] Indian Inst Technol Kanpur, Dept Mech Engn, Kanpur 208016, Uttar Pradesh, India

来源：

COLLOID AND INTERFACE SCIENCE COMMUNICATIONS | 2019年 / 31卷

关键词：

Wear and tribology; Fullerenes; Carbon nanotubes; Adhesion; Boundary lubrication; TRIBOLOGICAL PROPERTIES; WEAR PROPERTIES; BEHAVIOR; FRICTION; OIL; HUMIDITY; GRAPHENE; PERFORMANCE; COMPOSITES; IRON;

D O I：

10.1016/j.colcom.2019.100186

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Lubrication mechanism of some carbon-based nanoparticles is unresolved and needs proper attention. In this work, friction and wear properties of carbon/MoS2 solid lubricants are tested in the boundary lubrication regime and further compared with oil-based binary and ternary nanolubricants. Results show that MWCNT and fullerene have high values of friction coefficient and wear rate in a dry medium. However, in lubricated medium with fomblin oil, they comply with the boundary lubrication mechanism and provide low friction and wear. The binary and ternary nanolubricants of oil-graphene, oil-MoS2, and oil-graphene-MoS2, oil-graphene-fullerene have provided enhanced wear and friction performance due to a build-up of a tribofilm between the contact zones. The interfacial contact mechanism depends on aggregation and particle rolling for dry and lubrication contact, respectively.

引用

页数：10

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