Control of pattern formation during phase separation initiated by a propagated trigger

Abstract Understanding pattern formation during phase separation is a key topic in materials science for the important role that patterns play in determining macroscopic physical properties. In this work, we show how pattern formation can be controlled using a phase-separation trigger propagating ou...

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Autor principal: Rei Kurita
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Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/48020883a4464e8e85276de912c3598c
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spelling oai:doaj.org-article:48020883a4464e8e85276de912c3598c2021-12-02T16:06:12ZControl of pattern formation during phase separation initiated by a propagated trigger10.1038/s41598-017-07352-z2045-2322https://doaj.org/article/48020883a4464e8e85276de912c3598c2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07352-zhttps://doaj.org/toc/2045-2322Abstract Understanding pattern formation during phase separation is a key topic in materials science for the important role that patterns play in determining macroscopic physical properties. In this work, we show how pattern formation can be controlled using a phase-separation trigger propagating outwards from a point. We found a range of patterns, including a random droplet pattern, a concentric pattern and a dendritic pattern, depending on the speed at which the trigger propagates, while only the random droplet pattern is observed in a system with homogeneous cooling. We also found that the phase at the core of the concentric pattern periodically changes with time. In addition, we investigated pattern formation during phase separation induced by multiple propagated triggers. When we propagate the triggers from periodic points in space, a metastable regular hexagonal pattern is formed. We also found a bifurcation between a case where the majority phase becomes a droplet phase and a case where the minority phase adopts a droplet pattern. We also confirm the existence of a percolated, bicontinuous phase, even with an asymmetric composition.Rei KuritaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Rei Kurita
Control of pattern formation during phase separation initiated by a propagated trigger
description Abstract Understanding pattern formation during phase separation is a key topic in materials science for the important role that patterns play in determining macroscopic physical properties. In this work, we show how pattern formation can be controlled using a phase-separation trigger propagating outwards from a point. We found a range of patterns, including a random droplet pattern, a concentric pattern and a dendritic pattern, depending on the speed at which the trigger propagates, while only the random droplet pattern is observed in a system with homogeneous cooling. We also found that the phase at the core of the concentric pattern periodically changes with time. In addition, we investigated pattern formation during phase separation induced by multiple propagated triggers. When we propagate the triggers from periodic points in space, a metastable regular hexagonal pattern is formed. We also found a bifurcation between a case where the majority phase becomes a droplet phase and a case where the minority phase adopts a droplet pattern. We also confirm the existence of a percolated, bicontinuous phase, even with an asymmetric composition.
format article
author Rei Kurita
author_facet Rei Kurita
author_sort Rei Kurita
title Control of pattern formation during phase separation initiated by a propagated trigger
title_short Control of pattern formation during phase separation initiated by a propagated trigger
title_full Control of pattern formation during phase separation initiated by a propagated trigger
title_fullStr Control of pattern formation during phase separation initiated by a propagated trigger
title_full_unstemmed Control of pattern formation during phase separation initiated by a propagated trigger
title_sort control of pattern formation during phase separation initiated by a propagated trigger
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/48020883a4464e8e85276de912c3598c
work_keys_str_mv AT reikurita controlofpatternformationduringphaseseparationinitiatedbyapropagatedtrigger
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