| A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions | |
| Department | 固体润滑国家重点实验室 |
Li CX(李春霞); Yan FY(阎逢元)
| |
| 2009 | |
| Source Publication | Wear
 |
| ISSN | 0043-1648 |
| Volume | 266Pages:632-638 |
| Abstract | The wear behavior of polytetrafluoroethylene (PTFE) and polyimide (PI) has been comparatively evaluated under dry sliding and simulated sand-dust conditions. An improved block-on-ring wear tester equipped with an attachment for simulating the sand-dust environment was used to evaluate the abrasive wear behavior of materials. The sand collected from the Yellow River of China was used to simulate the sand- dust environment, also different loads and sand-dust sizes were chosen for tribological tests. The two chosen polymers showed different wear behavior under sand-dust conditions and the wear rates of PTFE were much lower under sand-dust conditions than under dry sliding conditions. This was attributed to the formation of the tribolayer on the worn surfaces during the abrasive wear process. The sand-dust enhanced the wear resistance of PTFE, but reduced that of PI because, in contrast to PTFE, there was no tribolayer formed on the PI worn surface. The wear rate of PTFE increased under sand-dust conditions while the wear rate of PI decreased with the increase of applied load. The higher hardness of PI and fragmentation of abrasive particles under high loads accounted for the decrease in wear rate as load increased. |
| Keyword | Ptfe Pi Simulated Sand-dust Tribolayer |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the National 863 Program of China (No. 2007AA03Z358) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能防护材料组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/2154 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Li CX(李春霞) |
| Recommended Citation GB/T 7714 | Li CX,Yan FY. A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions[J]. Wear,2009,266:632-638. |
| APA | 李春霞,&阎逢元.(2009).A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions.Wear,266,632-638. |
| MLA | 李春霞,et al."A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions".Wear 266(2009):632-638. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2009632-638.pdf（1581KB） | 开放获取 | License | View Application Full Text | |||
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