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arXiv · 2409.20114

Guided mechanical self-assembly of bubbles in fiber arrays

Marwan Chammouma·Manon Jouanlanne·Antoine Egelé·Damien Favier·Jean Farago·Aurélie Hourlier-Fargette
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Abstract

Spontaneous mechanical self-assembly of monodisperse bubbles generally leads to disordered foams at low density: producing crystalline structures such as Kelvin foams has proven to be challenging experimentally, despite them being a minimum of energy. Here we show how bubbling in different fiber arrays controls foam architectures through a guided mechanical self-assembly. Analyzing X-ray tomography scans of solidified polymer foams using Steinhardt's parameters highlights clear signatures of Kelvin and hexagonal close packing crystalline foams, opening a novel route towards ordered hierarchical materials.

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Marwan Chammouma, Manon Jouanlanne, Antoine Egelé, Damien Favier, Jean Farago, Aurélie Hourlier-Fargette. 2024-09-30. Guided mechanical self-assembly of bubbles in fiber arrays. https://arxiv.org/abs/2409.20114

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