TY - JOUR
T1 - The role of phase separation on Rayleigh-Plateau type instabilities in alloys
AU - Allaire, Ryan H.
AU - Kondic, Lou
AU - Cummings, Linda J.
AU - Rack, Philip D.
AU - Fuentes-Cabrera, Miguel
N1 - Funding Information:
R.H.A. was supported by a DOE Office of Science Graduate Student Research Program. This research was conducted at New Jersey Institute of Technology, University of Tennessee, Knoxville, and the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. This research used resources of the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725. P.D.R. and R.H.A. acknowledge support from NSF CBET-1603780. R.H.A. and L.K. acknowledge support by the NSF Grant No. CBET 1604351. L.J.C. and L.K. acknowledge support from NSF Grants No. DMS 1815613 and DMS 1615719. L.K. acknowledges support from CNMS 2020-A-00110. We are grateful to Jason Fowlkes and David Garfinkel for discussions and feedback. 1
Funding Information:
R.H.A. was supported by a DOE Office of Science Graduate Student Research Program. This research was conducted at New Jersey Institute of Technology, University of Tennessee, Knoxville, and the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. This research used resources of the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725. P.D.R. and R.H.A. acknowledge support from NSF CBET-1603780. R.H.A. and L.K. acknowledge support by the NSF Grant No. CBET 1604351. L.J.C. and L.K. acknowledge support from NSF Grants No. DMS 1815613 and DMS 1615719. L.K. acknowledges support from CNMS 2020-A-00110. We are grateful to Jason Fowlkes and David Garfinkel for discussions and feedback.
Publisher Copyright:
© 2021 American Chemical Society
PY - 2021/3/18
Y1 - 2021/3/18
N2 - 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.
AB - 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.
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U2 - 10.1021/acs.jpcc.0c08720
DO - 10.1021/acs.jpcc.0c08720
M3 - Article
AN - SCOPUS:85103466806
SN - 1932-7447
VL - 125
SP - 5723
EP - 5731
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 10
ER -