Spinodal decomposition in a model colloid-polymer mixture in microgravity

We study phase separation in a deeply quenched colloid-polymer mixture in microgravity on the International Space Station using small-angle light scattering and direct imaging. We observe a clear crossover from early-stage spinodal decomposition to late-stage, interfacial-tension-driven coarsening. Data acquired over 5 orders of magnitude in time show more than 3 orders of magnitude increase in domain size, following nearly the same evolution as that in binary liquid mixtures. The late-stage growth approaches the expected linear growth rate quite slowly. © 2007 The American Physical Society.


Published in:
Physical Review Letters, 99, 20, null
Year:
2007
Publisher:
American Physical Society
ISSN:
0031-9007
Laboratories:




 Record created 2012-11-26, last modified 2018-01-28


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