Instability of nano- and microscale liquid metal filaments: Transition from single droplet collapse to multidroplet breakup
Abstract
We carry out experimental and numerical studies to investigate the collapse and breakup of finite size, nano- and microscale, liquid metal filaments supported on a substrate. We find the critical dimensions below which filaments do not break up but rather collapse to a single droplet. The transition from collapse to breakup can be described as a competition between two fluid dynamic phenomena: the capillary driven end retraction and the Rayleigh–Plateau type instability mechanism that drives the breakup. We focus on the unique spatial and temporal transition region between these two phenomena using patterned metallic thin film strips and pulsed-laser-induced dewetting. The experimental results are compared to an analytical model proposed by Driessen et al. and modified to include substrate interactions. Additionally, we report the results of numerical simulations based on a volume-of-fluid method to provide additional insight and highlight the importance of liquid metal resolidification, which reduces inertial effects.
- Authors:
-
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
- New Jersey Institute of Technology, Newark, NJ (United States). Dept. of Mathematical Sciences
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1267054
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Langmuir
- Additional Journal Information:
- Journal Volume: 31; Journal Issue: 50; Journal ID: ISSN 0743-7463
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Hartnett, Chris A., Mahady, Kyle, Fowlkes, Jason Davidson, Afkhami, Shahriar, Rack, P. D., and Kondic, L. Instability of nano- and microscale liquid metal filaments: Transition from single droplet collapse to multidroplet breakup. United States: N. p., 2015.
Web. doi:10.1021/acs.langmuir.5b03598.
Hartnett, Chris A., Mahady, Kyle, Fowlkes, Jason Davidson, Afkhami, Shahriar, Rack, P. D., & Kondic, L. Instability of nano- and microscale liquid metal filaments: Transition from single droplet collapse to multidroplet breakup. United States. https://doi.org/10.1021/acs.langmuir.5b03598
Hartnett, Chris A., Mahady, Kyle, Fowlkes, Jason Davidson, Afkhami, Shahriar, Rack, P. D., and Kondic, L. Mon .
"Instability of nano- and microscale liquid metal filaments: Transition from single droplet collapse to multidroplet breakup". United States. https://doi.org/10.1021/acs.langmuir.5b03598. https://www.osti.gov/servlets/purl/1267054.
@article{osti_1267054,
title = {Instability of nano- and microscale liquid metal filaments: Transition from single droplet collapse to multidroplet breakup},
author = {Hartnett, Chris A. and Mahady, Kyle and Fowlkes, Jason Davidson and Afkhami, Shahriar and Rack, P. D. and Kondic, L.},
abstractNote = {We carry out experimental and numerical studies to investigate the collapse and breakup of finite size, nano- and microscale, liquid metal filaments supported on a substrate. We find the critical dimensions below which filaments do not break up but rather collapse to a single droplet. The transition from collapse to breakup can be described as a competition between two fluid dynamic phenomena: the capillary driven end retraction and the Rayleigh–Plateau type instability mechanism that drives the breakup. We focus on the unique spatial and temporal transition region between these two phenomena using patterned metallic thin film strips and pulsed-laser-induced dewetting. The experimental results are compared to an analytical model proposed by Driessen et al. and modified to include substrate interactions. Additionally, we report the results of numerical simulations based on a volume-of-fluid method to provide additional insight and highlight the importance of liquid metal resolidification, which reduces inertial effects.},
doi = {10.1021/acs.langmuir.5b03598},
journal = {Langmuir},
number = 50,
volume = 31,
place = {United States},
year = {Mon Nov 23 00:00:00 EST 2015},
month = {Mon Nov 23 00:00:00 EST 2015}
}
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