Comparative tribological behavior of friction composites containing natural graphite and expanded graphite

被引：30

作者：

Jin, Hongyun ^{[1
]}

Zhou, Keke ^{[1
]}

Ji, Zhengjia ^{[1
]}

Tian, Xiaocong ^{[1
]}

Chen, Ying ^{[1
]}

Lu, Luhua ^{[1
]}

Ren, Yazhou ^{[1
]}

Xu, Chunhui ^{[1
]}

Duan, Shanshan ^{[1
]}

Li, Jiangyu ^{[1
,2
]}

Hou, Shu-en ^{[1
]}

机构：

[1] China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Peoples R China

[2] Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA

来源：

FRICTION | 2020年 / 8卷 / 04期

关键词：

natural graphite; expanded graphite; tribological behavior; wear mechanism; THERMAL-STABILITY; WEAR-RESISTANCE; SOLID LUBRICANT; PERFORMANCE; WHISKER; DESIGN; MATRIX; EG;

D O I：

10.1007/s40544-019-0293-3

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this study, expanded graphite and natural graphite were introduced into resin-based friction materials, and the tribological behavior of the composites was investigated. The tribo-performance of the two friction composites was evaluated using a constant speed friction tester. The results showed that the expanded graphite composite (EGC) displayed better lubricity in both the fading and the recovery processes. The wear rate of the EGC decreased by 22.43% more than that of the natural graphite composite (NGC). In the fading process, and the EGC enhanced the stability of the coefficient of friction. The recovery maintenance rate of the NGC was 4.66% higher than that of the EGC. It can be concluded that expanded graphite plays an important role in the formation of a stable contact plateau and can effectively reduce the wear.

引用

页码：684 / 694

页数：11

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