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Title: Dynamic evolution of liquid–liquid phase separation during continuous cooling

Abstract

Solidification from a multiphase fluid involves many unknown quantities due to the difficulty of predicting the impact of fluid flow on chemical partitioning. Real-time x-ray radiography was used to observe liquid-liquid phase separation in Al 90In 10 prior to solidification. Quantitative image analysis was used to measure the motion and population characteristics of the dispersed indium-rich liquid phase during cooling. Here we determine that the droplet growth characteristics resemble well known steady-state coarsening laws with likely enhancement by concurrent growth due to supersaturation. Simplistic views of droplet motion are found to be insufficient until late in the reaction due to a hydrodynamic instability caused by the large density difference between the dispersed and matrix liquid phases.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [3];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Division of Materials Sciences and Engineering; USDOE
OSTI Identifier:
1238610
Alternate Identifier(s):
OSTI ID: 1247744
Report Number(s):
LA-UR-13-28612
Journal ID: ISSN 0254-0584; PII: S0254058414008499
Grant/Contract Number:  
AC02-06CH11357; AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Materials Chemistry and Physics
Additional Journal Information:
Journal Volume: 153; Journal ID: ISSN 0254-0584
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Imhoff, Seth D., Gibbs, Paul J., Katz, Martha R., Ott, Thomas J., Patterson, Brian M., Lee, Wah-Keat, Fezzaa, Kamel, Cooley, Jason C., and Clarke, Amy J. Dynamic evolution of liquid–liquid phase separation during continuous cooling. United States: N. p., 2015. Web. doi:10.1016/j.matchemphys.2014.12.039.
Imhoff, Seth D., Gibbs, Paul J., Katz, Martha R., Ott, Thomas J., Patterson, Brian M., Lee, Wah-Keat, Fezzaa, Kamel, Cooley, Jason C., & Clarke, Amy J. Dynamic evolution of liquid–liquid phase separation during continuous cooling. United States. doi:10.1016/j.matchemphys.2014.12.039.
Imhoff, Seth D., Gibbs, Paul J., Katz, Martha R., Ott, Thomas J., Patterson, Brian M., Lee, Wah-Keat, Fezzaa, Kamel, Cooley, Jason C., and Clarke, Amy J. Tue . "Dynamic evolution of liquid–liquid phase separation during continuous cooling". United States. doi:10.1016/j.matchemphys.2014.12.039. https://www.osti.gov/servlets/purl/1238610.
@article{osti_1238610,
title = {Dynamic evolution of liquid–liquid phase separation during continuous cooling},
author = {Imhoff, Seth D. and Gibbs, Paul J. and Katz, Martha R. and Ott, Thomas J. and Patterson, Brian M. and Lee, Wah-Keat and Fezzaa, Kamel and Cooley, Jason C. and Clarke, Amy J.},
abstractNote = {Solidification from a multiphase fluid involves many unknown quantities due to the difficulty of predicting the impact of fluid flow on chemical partitioning. Real-time x-ray radiography was used to observe liquid-liquid phase separation in Al90In10 prior to solidification. Quantitative image analysis was used to measure the motion and population characteristics of the dispersed indium-rich liquid phase during cooling. Here we determine that the droplet growth characteristics resemble well known steady-state coarsening laws with likely enhancement by concurrent growth due to supersaturation. Simplistic views of droplet motion are found to be insufficient until late in the reaction due to a hydrodynamic instability caused by the large density difference between the dispersed and matrix liquid phases.},
doi = {10.1016/j.matchemphys.2014.12.039},
journal = {Materials Chemistry and Physics},
number = ,
volume = 153,
place = {United States},
year = {2015},
month = {1}
}