Tribological and rheological evaluation of a graphene nanosheets-based lubricant for metal-on-metal and wet clutch interfaces

被引：7

作者：

Cao-Romero-Gallegos, Julio A. ^{[1
]}

Farfan-Cabrera, Leonardo, I ^{[1
]}

Perez-Gonzalez, Jose ^{[2
]}

Marin-Santibanez, Benjamin M. ^{[3
]}

机构：

[1] Tecnol Monterrey, Escuela Ingn & Ciencias, Ave Eugenio Garza Sada 2501, Monterrey 64849, NL, Mexico

[2] Inst Politecn Nacl, Escuela Super Fis & Matemat, UP Adolfo Lopez Mateos Edif 9, Ciudad De Mexico 07738, Mexico

[3] Inst Politecn Nacl, Escuela Super Ingn Quim & Ind Extract, UP Adolfo Lopez Mateos Edif 7, Ciudad De Mexico 07738, Mexico

来源：

MATERIALS LETTERS | 2022年 / 309卷

关键词：

Graphene; Pin-on-disc; Anti-shudder; Rheology; Wet clutch; Nanolubricant;

D O I：

10.1016/j.matlet.2021.131441

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The tribological and rheological behavior of mineral oil (MO) additivated with graphene nano-sheets (GNS) as lubricant in metal-on-metal interfaces and actual wet clutch materials was analyzed in this work with a focus on its potential use in automatic transmission (AT) systems. Lubricants prepared with different GNS concentrations (0.1, 0.5, 1.0 w/v%) in MO were evaluated in shear flow (viscosity changes) and by ball-on-disc measurements. Besides, thermogravimetric analysis and wet clutch friction tests at 26 and 100 degrees C were performed. Overall, the GNS addition to MO made the lubricants non-Newtonian shear-thinning and increased their viscosity at high shear rates, reduced the wear rate for the metallic interfaces tested, and enhanced the thermal stability and oil anti-shudder property of the wet clutch.

引用

页数：5

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