Fingering Instabilities in Dewetting Nanofluids
The growth of fingering patterns in dewetting nanofluids (colloidal solutions of thiol-passivated gold nanoparticles) has been followed in real time using contrast-enhanced video microscopy. The fingering instability on which we focus here arises from evaporatively-driven nucleation and growth a na...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Published: |
American Physical Society
2008
|
| Online Access: | https://eprints.nottingham.ac.uk/903/ |
| _version_ | 1848790499074244608 |
|---|---|
| author | Pauliac-Vaujour, E Stannard, A Martin, CP Blunt, MO Notingher, I Moriarty, P Vancea, I Thiele, U |
| author_facet | Pauliac-Vaujour, E Stannard, A Martin, CP Blunt, MO Notingher, I Moriarty, P Vancea, I Thiele, U |
| author_sort | Pauliac-Vaujour, E |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The growth of fingering patterns in dewetting nanofluids (colloidal solutions of thiol-passivated gold nanoparticles) has been followed in real time using contrast-enhanced video microscopy. The fingering instability on which we focus here arises from evaporatively-driven nucleation and growth
a nanoscopically thin "precursor" solvent film behind the macroscopic contact line. We find that well-developed isotropic fingering structures only form for a narrow range of experimental parameters. Numerical simulations, based on a modification of the Monte Carlo approach introduced by Rabani et al. [Nature 426, 271 (2003)], reproduce the patterns we observe experimentally. |
| first_indexed | 2025-11-14T18:13:35Z |
| format | Article |
| id | nottingham-903 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:13:35Z |
| publishDate | 2008 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-9032020-05-04T16:27:35Z https://eprints.nottingham.ac.uk/903/ Fingering Instabilities in Dewetting Nanofluids Pauliac-Vaujour, E Stannard, A Martin, CP Blunt, MO Notingher, I Moriarty, P Vancea, I Thiele, U The growth of fingering patterns in dewetting nanofluids (colloidal solutions of thiol-passivated gold nanoparticles) has been followed in real time using contrast-enhanced video microscopy. The fingering instability on which we focus here arises from evaporatively-driven nucleation and growth a nanoscopically thin "precursor" solvent film behind the macroscopic contact line. We find that well-developed isotropic fingering structures only form for a narrow range of experimental parameters. Numerical simulations, based on a modification of the Monte Carlo approach introduced by Rabani et al. [Nature 426, 271 (2003)], reproduce the patterns we observe experimentally. American Physical Society 2008-05-02 Article PeerReviewed Pauliac-Vaujour, E, Stannard, A, Martin, CP, Blunt, MO, Notingher, I, Moriarty, P, Vancea, I and Thiele, U (2008) Fingering Instabilities in Dewetting Nanofluids. Physical Review Letters, 100 . 176102-1-176102-4. http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000100000017176102000001&idtype=cvips&gifs=yes |
| spellingShingle | Pauliac-Vaujour, E Stannard, A Martin, CP Blunt, MO Notingher, I Moriarty, P Vancea, I Thiele, U Fingering Instabilities in Dewetting Nanofluids |
| title | Fingering Instabilities in Dewetting Nanofluids |
| title_full | Fingering Instabilities in Dewetting Nanofluids |
| title_fullStr | Fingering Instabilities in Dewetting Nanofluids |
| title_full_unstemmed | Fingering Instabilities in Dewetting Nanofluids |
| title_short | Fingering Instabilities in Dewetting Nanofluids |
| title_sort | fingering instabilities in dewetting nanofluids |
| url | https://eprints.nottingham.ac.uk/903/ https://eprints.nottingham.ac.uk/903/ |