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Article Dans Une Revue Physical Review Research Année : 2020

Rearrangement of 2D aggregates of droplets under compression: signatures of the energy landscape from crystal to glass

Jean-Christophe Ono-Dit-Biot
  • Fonction : Auteur
Pierre Soulard
  • Fonction : Auteur
Solomon Barkley
  • Fonction : Auteur
Eric Weeks
  • Fonction : Auteur
  • PersonId : 879982
Thomas Salez
Elie Raphael
Kari Dalnoki-Veress
  • Fonction : Auteur

Résumé

We study signatures of the energy landscape's evolution through the crystal-to-glass transition by compressing 2D finite aggregates of oil droplets. Droplets of two distinct sizes are used to compose small aggregates in an aqueous environment. Aggregates range from perfectly ordered monodisperse single crystals to disordered bidisperse glasses. The aggregates are compressed between two parallel boundaries, with one acting as a force sensor. The compression force provides a signature of the aggregate composition and gives insight into the energy landscape. In particular, crystals dissipate all the stored energy through single catastrophic fracture events whereas the glassy aggregates break step-by-step. Remarkably, the yielding properties of the 2D aggregates are strongly impacted by even a small amount of disorder.
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Dates et versions

hal-02271259 , version 1 (26-08-2019)

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Jean-Christophe Ono-Dit-Biot, Pierre Soulard, Solomon Barkley, Eric Weeks, Thomas Salez, et al.. Rearrangement of 2D aggregates of droplets under compression: signatures of the energy landscape from crystal to glass. Physical Review Research, 2020, 2, pp.023070. ⟨hal-02271259⟩

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