Exploring the friction and wear behaviors of Ag-Mo hybrid modified thermosetting polyimide composites at high temperature

被引：11

作者：

Duan, Chunjian ^{[1
,2
]}

He, Ren ^{[3
]}

Li, Song ^{[1
,2
]}

Shao, Mingchao ^{[1
,2
]}

Yang, Rui ^{[1
,2
]}

Tao, Liming ^{[1
]}

Wang, Chao ^{[1
]}

Yuan, Ping ^{[3
]}

Wang, Tingmei ^{[1
]}

Wang, Qihua ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] China Acad Engn Phys, Inst Syst Engn, Mianyang 621900, Sichuan, Peoples R China

来源：

FRICTION | 2020年 / 8卷 / 05期

基金：

中国国家自然科学基金;

关键词：

polyimide; Ag-Mo hybrids; self-lubricating composites; high temperature tribology; FUNCTIONALIZED GRAPHENE; TRIBOLOGICAL PROPERTIES; RAMAN-SPECTROSCOPY; SOLID LUBRICANTS; NANOCOMPOSITE; PERFORMANCE; MECHANISMS; POLYMERS; COATINGS;

D O I：

10.1007/s40544-019-0306-2

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Polyimide composites have been extensively used as motion components under extreme conditions for their thermal stability and special self-lubricating performance. In the present study, Ag-Mo hybrids as lubricant fillers were incorporated into thermosetting polyimide to prepare a new type of tribo-materials (TPI-1) at high temperature. Comprehensive investigations at different temperatures reveal that the newly developed TPI-1 exhibits a better reduction in friction and wear rate below 100 degrees C, but all of them increase significantly when the bulk temperature exceeds 250 degrees C. The wear mechanisms demonstrated that sandwich-like tribofilms with different layers were established at different temperatures, which was further verified by characterization of scanning electron microscope (SEM), Raman spectroscopy, and transmission electron microscope (TEM). Considering the high-performance TPI coupled with Ag-Mo hybrids, we anticipate that further exploration would provide guidance for designing TPI tribo-materials that would be used at high temperatures.

引用

页码：893 / 904

页数：12

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