The Role of Phase Separation on Rayleigh-Plateau Type Instabilities in Alloys
Abstract
Classical molecular dynamics (MD) simulations are used to investigate the role of phase separation (PS) on the Rayleigh-Plateau (RP) instability. Ni–Ag bulk structures are created at temperatures (2000 K and 1400 K) that generate different PS length scales, λPS, relative to the RP instability length scale, λRP. Rectanguloids are then cut from the bulk structures and patterned with a perturbation of certain amplitude and wavelength, λRP. It is found that when λPS << λRP (2000 K), the patterned rectanguloids break up into nanoparticles in a manner consistent with classical RP theory, whereas when λPS << λRP (1400 K), soluto-capillarity affects the RP instability significantly. Specifically, since Ag has a lower surface energy than Ni, Ag migrates to cover neighboring Ni regions, therefore modifying the RP instability. Thus, we demonstrate that the phase separation length scale of an immiscible alloy can be exploited to direct the assembly of functional bimetallic alloys.
- Authors:
-
[1];
[2];
[3]
- New Jersey Institute of Technology, Newark, NJ (United States)
- Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
- OSTI Identifier:
- 1818735
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physical Chemistry. C
- Additional Journal Information:
- Journal Volume: 125; Journal Issue: 10; Journal ID: ISSN 1932-7447
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Chemical structure; Quantum mechanics; Liquids; Electron correlation; Nanoparticles
Citation Formats
Allaire, Ryan H., Kondic, Lou, Cummings, Linda J., Rack, Philip D., and Fuentes-Cabrera, Miguel. The Role of Phase Separation on Rayleigh-Plateau Type Instabilities in Alloys. United States: N. p., 2021.
Web. doi:10.1021/acs.jpcc.0c08720.
Allaire, Ryan H., Kondic, Lou, Cummings, Linda J., Rack, Philip D., & Fuentes-Cabrera, Miguel. The Role of Phase Separation on Rayleigh-Plateau Type Instabilities in Alloys. United States. https://doi.org/10.1021/acs.jpcc.0c08720
Allaire, Ryan H., Kondic, Lou, Cummings, Linda J., Rack, Philip D., and Fuentes-Cabrera, Miguel. Tue .
"The Role of Phase Separation on Rayleigh-Plateau Type Instabilities in Alloys". United States. https://doi.org/10.1021/acs.jpcc.0c08720. https://www.osti.gov/servlets/purl/1818735.
@article{osti_1818735,
title = {The Role of Phase Separation on Rayleigh-Plateau Type Instabilities in Alloys},
author = {Allaire, Ryan H. and Kondic, Lou and Cummings, Linda J. and Rack, Philip D. and Fuentes-Cabrera, Miguel},
abstractNote = {Classical molecular dynamics (MD) simulations are used to investigate the role of phase separation (PS) on the Rayleigh-Plateau (RP) instability. Ni–Ag bulk structures are created at temperatures (2000 K and 1400 K) that generate different PS length scales, λPS, relative to the RP instability length scale, λRP. Rectanguloids are then cut from the bulk structures and patterned with a perturbation of certain amplitude and wavelength, λRP. It is found that when λPS << λRP (2000 K), the patterned rectanguloids break up into nanoparticles in a manner consistent with classical RP theory, whereas when λPS << λRP (1400 K), soluto-capillarity affects the RP instability significantly. Specifically, since Ag has a lower surface energy than Ni, Ag migrates to cover neighboring Ni regions, therefore modifying the RP instability. Thus, we demonstrate that the phase separation length scale of an immiscible alloy can be exploited to direct the assembly of functional bimetallic alloys.},
doi = {10.1021/acs.jpcc.0c08720},
journal = {Journal of Physical Chemistry. C},
number = 10,
volume = 125,
place = {United States},
year = {Tue Mar 09 00:00:00 EST 2021},
month = {Tue Mar 09 00:00:00 EST 2021}
}
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