Tribological properties of polymers PI, PTFE and PEEK at cryogenic temperature in vacuum | |
Department | 先进润滑与防护材料研究发展中心 |
Wang QH(王齐华)1; Zheng F(郑菲)1,2; Wang TM(王廷梅)1; Zheng F(郑菲) | |
The second department | 固体润滑国家重点实验室 |
2016 | |
Source Publication | Cryogenics |
ISSN | 0011-2275 |
Volume | 75Pages:19-25 |
Abstract | The effects of temperature, sliding speed and load on the tribological properties of polyimide (PI), polytetrafluoroethylene (PTFE) and polyetheretherketone (PEEK) at cryogenic temperature in vacuum were investigated using a ball-on-disk tribometer. At cryogenic temperature, polymers show higher hardness which results in decreasing contact area between the friction pairs. Moreover, the real surface area in contact between steel ball and polymer disk determines the friction coefficient instead of the formation and adhesion of the transfer film. Thus, the friction coefficients at cryogenic temperatures are lower than at room temperature. On the other hand, wear rates of the three polymers decrease as temperature decreases since molecular mobility and migration are limited at cryogenic temperatures. For the visco-elasticity of PI, PTFE and PEEK, the friction coefficients fall as the load increases. |
Keyword | Friction And Wear Cryogenic Temperature Vacuum Polymers Pi Ptfe Peek |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.cryogenics.2016.01.001 |
Funding Organization | the National Key Basic Research Program of China (973 Program, Grant No. 2015CB057502);the National Defense Innovation Fund of Chinese Academy of Sciences (CXJJ-14-M43) |
Indexed By | SCI |
If | 1.465 |
Language | 英语 |
Funding Project | 聚合物自润滑复合材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19456 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Zheng F(郑菲) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Wang QH,Zheng F,Wang TM,et al. Tribological properties of polymers PI, PTFE and PEEK at cryogenic temperature in vacuum[J]. Cryogenics,2016,75:19-25. |
APA | Wang QH,Zheng F,Wang TM,&郑菲.(2016).Tribological properties of polymers PI, PTFE and PEEK at cryogenic temperature in vacuum.Cryogenics,75,19-25. |
MLA | Wang QH,et al."Tribological properties of polymers PI, PTFE and PEEK at cryogenic temperature in vacuum".Cryogenics 75(2016):19-25. |
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