| Dewetting-mediated pattern formation inside the coffee ring |
| Li WB(李伟斌) ; Lan D(蓝鼎); Wang YR(王育人); Lan, D (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China.
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| 发表期刊 | PHYSICAL REVIEW E
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| 2017-04-14
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| 卷号 | 95期号:4页码:042607 |
| ISSN | 2470-0045
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| 摘要 | The rearrangement of particles in the final stage of droplet evaporation has been investigated by utilizing differential interference contrast microscopy and the formation mechanism of a network pattern inside a coffee ring has been revealed. A tailored substrate with a circular hydrophilic domain is prepared to obtain thin liquid film containing monolayer particles. Real-time bottom-view images show that the evolution of a dry patch could be divided into three stages: rupture initiation, dry patch expansion, and drying of the residual liquid. A growing number of dry patches will repeat these stages to form the network patterns inside the ringlike stain. It can be shown that the suction effect promotes the rupture of the liquid film and the formation of the dry patch. The particle-assembling process is totally controlled by the liquid film dewetting and dominated by the surface tension of the liquid film, which eventually determine the ultimate deposition patterns. |
| DOI | 10.1103/PhysRevE.95.042607
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000399951900006
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| WOS类目 | Physics, Fluids & Plasmas
; Physics, Mathematical
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| 课题组名称 | NML空间材料物理力学
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| 论文分区 | 一类
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| 力学所作者排名 | 1
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/60709
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| 专题 | 微重力重点实验室
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| 通讯作者 | Lan, D (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China. |
推荐引用方式
GB/T 7714 |
Li WB,Lan D,Wang YR,et al. Dewetting-mediated pattern formation inside the coffee ring[J]. PHYSICAL REVIEW E,2017,95,4,:042607.
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| APA |
李伟斌,蓝鼎,王育人,&Lan, D .(2017).Dewetting-mediated pattern formation inside the coffee ring.PHYSICAL REVIEW E,95(4),042607.
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| MLA |
李伟斌,et al."Dewetting-mediated pattern formation inside the coffee ring".PHYSICAL REVIEW E 95.4(2017):042607.
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