Growth of liquid bridge in AFM
文献类型：期刊论文
| 作者 | Wei Z(魏征); Zhao YP(赵亚溥)
|
| 刊名 | Journal of Physics D-Applied Physics
 |
| 出版日期 | 2007 |
| 卷号 | 40期号:14页码:4368-4375 |
| 通讯作者邮箱 | yzhao@imech.ac.cn |
| 关键词 | Atomic-Force Microscope Capillary Condensation Adhesion Forces Water Adsorption Silicon Mica Pressure Surfaces Films |
| ISSN号 | 0022-3727 |
| 通讯作者 | Zhao, YP (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100080, Peoples R China. |
| 中文摘要 | Capillary forces are dominant in adhesive forces measured with an atomic force microscope (AFM) in ambient air, which are thought to be dependent on water film thickness, relative humidity and the free energy of the water film. In this paper, besides these factors, we study the nature of the 'pull-off' force on a variety of atmospheres as a function of the contact time. It is found that capillary forces strongly depend on the contact time. In lower relative humidity atmosphere, the adhesion force is almost independent of the contact time. However, in higher relative humidity, the adhesion force increases with the contact time. Based on the experiment and a model that we present in this paper, the growth of the liquid bridge can be seen as undergoing two processes: one is water vapour condensation; the other is the motion of the thin liquid film that is absorbed on the substrate. The experiment and the growth model presented in this paper have direct relevance to the working mechanism of AFM in ambient air. |
| 类目[WOS] | Physics, Applied |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | ATOMIC-FORCE MICROSCOPE ; CAPILLARY CONDENSATION ; ADHESION FORCES ; WATER ; ADSORPTION ; SILICON ; MICA ; PRESSURE ; SURFACES ; FILMS |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247930400037 |
| 公开日期 | 2009-08-03 ; 2010-06-13 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/33947]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Wei Z,Zhao YP. Growth of liquid bridge in AFM[J]. Journal of Physics D-Applied Physics,2007,40(14):4368-4375. |
| APA | 魏征,&赵亚溥.(2007).Growth of liquid bridge in AFM.Journal of Physics D-Applied Physics,40(14),4368-4375. |
| MLA | 魏征,et al."Growth of liquid bridge in AFM".Journal of Physics D-Applied Physics 40.14(2007):4368-4375. |
入库方式： OAI收割
来源：力学研究所
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