Impalement of fakir drops
Water drops deposited on hydrophobic materials decorated with dilute micro-posts generally form pearls. Owing to the hydrophobicity of the material, the drop sits on the top of the posts. However, this "fakir state" is often metastable: if the drop impales inside the texture, its surface e...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2008
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| _version_ | 1826263656558493696 |
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| author | Reyssat, M Yeomans, J Quere, D |
| author_facet | Reyssat, M Yeomans, J Quere, D |
| author_sort | Reyssat, M |
| collection | OXFORD |
| description | Water drops deposited on hydrophobic materials decorated with dilute micro-posts generally form pearls. Owing to the hydrophobicity of the material, the drop sits on the top of the posts. However, this "fakir state" is often metastable: if the drop impales inside the texture, its surface energy is lowered. Here we discuss the transition between these two states, considering the drop size as a parameter for inducing this transition: remarkably, it is found that a drop impales when it becomes small, which is interpreted by considering its curvature. This interpretation allows us to propose different recipes for avoiding this detrimental effect. © Europhysics Letters Association. |
| first_indexed | 2024-03-06T19:55:16Z |
| format | Journal article |
| id | oxford-uuid:255c1a80-2f03-4d20-8319-ba836ef911b1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:55:16Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:255c1a80-2f03-4d20-8319-ba836ef911b12022-03-26T11:55:11ZImpalement of fakir dropsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:255c1a80-2f03-4d20-8319-ba836ef911b1EnglishSymplectic Elements at Oxford2008Reyssat, MYeomans, JQuere, DWater drops deposited on hydrophobic materials decorated with dilute micro-posts generally form pearls. Owing to the hydrophobicity of the material, the drop sits on the top of the posts. However, this "fakir state" is often metastable: if the drop impales inside the texture, its surface energy is lowered. Here we discuss the transition between these two states, considering the drop size as a parameter for inducing this transition: remarkably, it is found that a drop impales when it becomes small, which is interpreted by considering its curvature. This interpretation allows us to propose different recipes for avoiding this detrimental effect. © Europhysics Letters Association. |
| spellingShingle | Reyssat, M Yeomans, J Quere, D Impalement of fakir drops |
| title | Impalement of fakir drops |
| title_full | Impalement of fakir drops |
| title_fullStr | Impalement of fakir drops |
| title_full_unstemmed | Impalement of fakir drops |
| title_short | Impalement of fakir drops |
| title_sort | impalement of fakir drops |
| work_keys_str_mv | AT reyssatm impalementoffakirdrops AT yeomansj impalementoffakirdrops AT quered impalementoffakirdrops |