Amorphous Carbon Films In Situ Formed From PTFE Transfer Layer in Solid Lubricated Cryogenic Turbopump Bearings
文献类型：期刊论文
| 作者 | Hu, Ming; Gao, Xiaoming; Wang, Peng; Fu, Yanlong; Sun, Jiayi; Weng, Lijun; Jiang, Dong; Wang, Desheng |
| 刊名 | TRIBOLOGY TRANSACTIONS
 |
| 出版日期 | 2019-04-15 |
| 页码 | 11 |
| 关键词 | Cryogenic turbopump bearings solid lubrication PTFE transfer layer amorphous carbon film |
| ISSN号 | 1040-2004 |
| DOI | 10.1080/10402004.2019.1586024 |
| 通讯作者 | Jiang, Dong(jiangdong@licp.cas.cn) ; Wang, Desheng(wangdsh@licp.cas.cn) |
| 英文摘要 | In order to fully evaluate the service reliability of cryogenic turbopump bearings, a newly developed solid lubricated bearing was tested using a custom ground bearing test system cooled by water. Stains with different color intensity were occasionally exhibited on the surfaces of the bearing balls after ground tests. This may pose a risk for the reliable service of the related bearings in real flight missions. Then the chemical composition and structural information of the stain layers were systematically analyzed by x-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and high-resolution transmission electron microscope (HRTEM). The results manifested that the stain layer had the characteristic of alpha-C film. The color intensity of stains was not caused by the structural changes, but was due to the difference of stain layers' thickness. The alpha-C films in situ formed during bearings operation should result from the defluorination of polytetrafluoroethylene (PTFE) layers, which transferred from retainer to balls in the previous step. Correspondingly, FeF2 was produced on the surfaces of the tested bearing rings as a by-product. Although the tested bearings with alpha-C films formed on the surfaces of balls did not reach the state of final failure, the affected balls showed high surface roughness, which could be an indicator of an imminent bearing failure. [GRAPHICS] . |
| 收录类别 | SCI |
| WOS关键词 | BALL-BEARINGS ; WEAR ; SPECTROSCOPY |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Mechanical |
| 语种 | 英语 |
| WOS记录号 | WOS:000469670500001 |
| 出版者 | TAYLOR & FRANCIS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555436 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Jiang, Dong; Wang, Desheng |
| 作者单位 | Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Ming,Gao, Xiaoming,Wang, Peng,et al. Amorphous Carbon Films In Situ Formed From PTFE Transfer Layer in Solid Lubricated Cryogenic Turbopump Bearings[J]. TRIBOLOGY TRANSACTIONS,2019:11. |
| APA | Hu, Ming.,Gao, Xiaoming.,Wang, Peng.,Fu, Yanlong.,Sun, Jiayi.,...&Wang, Desheng.(2019).Amorphous Carbon Films In Situ Formed From PTFE Transfer Layer in Solid Lubricated Cryogenic Turbopump Bearings.TRIBOLOGY TRANSACTIONS,11. |
| MLA | Hu, Ming,et al."Amorphous Carbon Films In Situ Formed From PTFE Transfer Layer in Solid Lubricated Cryogenic Turbopump Bearings".TRIBOLOGY TRANSACTIONS (2019):11. |
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来源：寒区旱区环境与工程研究所
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