| Effect of blowing air and floating sand-dust particles on the friction and wear behavior of PTFE, UHMWPE and PI | |
| Department | 固体润滑国家重点实验室 |
Li CX(李春霞); Yan FY(阎逢元)
| |
| 2008 | |
| Source Publication | Tribology Letters
 |
| ISSN | 1023-8883 |
| Volume | 32Pages:189-198 |
| Abstract | The friction and wear behaviors of polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene (UHMWPE), and polyimide (PI) have been comparatively evaluated under dry sliding, blowing air, and simulated sand-dust conditions. The tribological tests were conducted on an improved block-on-ring test rig equipped with an attachment for simulating the sand-dust environment. The reason for the difference in the tribological behavior of these polymers under the three test conditions was also comparatively discussed, based on scanning electron microscopic examination of the worn polymer specimens and counterfaces. Under blowing air conditions, the decrease of the contact temperature produced by blowing air led to the increase in the shearing strength of the sliding surface when compared with dry sliding conditions and hence to cause an increase in the friction coefficient and a remarkable decrease in the wear rate of PTFE and UHMWPE. On the contrary, blowing air produced a decrease in the friction coefficient of PI because of the formation of transfer film on the counterfaces, and an increase in the wear rate, because the blowing air considerably promoted the transfer of PI onto the counterfaces when compared with dry sliding conditions. Both PTFE and UHMWPE registered the lowest wear rate under sanddust conditions, owing to the tribolayer formation on the worn surfaces, while PI exhibited the highest wear rate because no tribolayer was formed during the abrasive wear process. |
| Keyword | Ptfe Uhmwpe Pi Abrasive Wear 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/362003/2714 |
| 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. Effect of blowing air and floating sand-dust particles on the friction and wear behavior of PTFE, UHMWPE and PI[J]. Tribology Letters,2008,32:189-198. |
| APA | 李春霞,&阎逢元.(2008).Effect of blowing air and floating sand-dust particles on the friction and wear behavior of PTFE, UHMWPE and PI.Tribology Letters,32,189-198. |
| MLA | 李春霞,et al."Effect of blowing air and floating sand-dust particles on the friction and wear behavior of PTFE, UHMWPE and PI".Tribology Letters 32(2008):189-198. |
| Files in This Item: | ||||||
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| 2008189-198.PDF（1858KB） | 开放获取 | License | View Application Full Text | |||
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