Tribological properties of polymers PI, PTFE and PEEK at cryogenic temperature in vacuum | |
Wang QH(王齐华)1; Zheng F(郑菲)1,2; Wang TM(王廷梅)1 | |
刊名 | Cryogenics |
2016 | |
卷号 | 75页码:19-25 |
关键词 | Friction and wear Cryogenic temperature Vacuum Polymers PI, PTFE, PEEK |
ISSN号 | 0011-2275 |
通讯作者 | 郑菲 |
英文摘要 | 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. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | 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) |
语种 | 英语 |
WOS记录号 | WOS:000375338600004 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/19456] |
专题 | 兰州化学物理研究所_先进润滑与防护材料研究发展中心 兰州化学物理研究所_固体润滑国家重点实验室 |
作者单位 | 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 |
推荐引用方式 GB/T 7714 | Wang QH,Zheng F,Wang TM. 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.(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. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论