Effect of cation on micro/nano-tribological properties of ultra-thin ionic liquid films
文献类型：期刊论文
| 作者 | Pu JB(蒲吉斌)
|
| 刊名 | Tribology International
 |
| 出版日期 | 2009 |
| 卷号 | 42页码:828-835 |
| 关键词 | Micro/nano-friction Adhesion Ionic liquids Ultra-thin film AFM |
| ISSN号 | 0301-679X |
| 通讯作者 | 白明武 |
| 中文摘要 | Room temperature ionic liquids (RTILs) have some unique characteristics which meet the requirements as high performance lubricants. In this work, three kinds of RTILs films with the same anion but different cations were prepared on single-crystal silicon wafer by dip-coating method. Thermal stability of the RTILs was evaluated using thermal gravity analysis in a nitrogen atmosphere. The morphology, nano-friction and nano-adhesion properties of the RTILs films were experimentally investigated at nano-scale using AFM/FFM. Chemical compositions of the films were characterized with a multifunctional X-ray photoelectron spectrometer. Micro-tribological properties of RTILs films were investigated using AISI-52100 steel ball in ball-on-plate configuration, and compared with perfluor- opolyether. The worn surface morphologies were measured with a 3D optical surface profilometer. Results show that 3-butyl-1-methyl-imidazolium tetrafluoroborate exhibited the best anti-wear ability in comparison with the other three lubricants. RTILs films could be used as a kind of novel lubricant for application in M/NEMS. The corresponding friction-reduction and anti-wear mechanisms of the tested ultra-thin RTILs films under tested conditionwere proposed based on the experimental observation. The investigation revealed that friction-reduction and anti-wear properties of RTILs were strongly dependent on their chemical structures. For the friction at nano-scale, the flexibility and surface energy of the lubricant played significant role, while for the friction at micro-scale, both the rigid cycle structure and flexible chain of the RTILs played crucial role. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (NSFC 50675217);National 973 Program (2007CB607601);Innovative Group Foundation (50421502) |
| 语种 | 英语 |
| WOS记录号 | WOS:000266374600007 |
| 公开日期 | 2012-11-13 |
| 源URL | [http://210.77.64.217/handle/362003/2135]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Pu JB. Effect of cation on micro/nano-tribological properties of ultra-thin ionic liquid films[J]. Tribology International,2009,42:828-835. |
| APA | 蒲吉斌.(2009).Effect of cation on micro/nano-tribological properties of ultra-thin ionic liquid films.Tribology International,42,828-835. |
| MLA | 蒲吉斌."Effect of cation on micro/nano-tribological properties of ultra-thin ionic liquid films".Tribology International 42(2009):828-835. |
入库方式： OAI收割
来源：兰州化学物理研究所
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