Matrix Viscoelasticity Decouples Bubble Growth and Mobility in Coarsening Foams

Autor(en)

Chiara Guidolin, Emmanuelle Rio, Roberto Cerbino, Fabio Giavazzi, Anniina Salonen

Abstrakt

Pressure-driven coarsening triggers bubble rearrangements in liquid foams. Our experiments show that changing the continuous phase rheology can alter these internal bubble dynamics without influencing the coarsening kinetics. Through bubble tracking, we find that increasing the matrix yield stress permits bubble growth without stress relaxation via neighbor-switching events, promoting more spatially homogeneous rearrangements and decoupling bubble growth from mobility. This eventually leads to a structural change that directly impacts the foam mechanical and stability properties, essential for applications in various technological and industrial contexts.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

Université Paris Saclay, Università degli Studi di Milano-Bicocca

Journal

Physical Review Letters

Band

133

Anzahl der Seiten

6

ISSN

0031-9007

DOI

https://doi.org/10.1103/PhysRevLett.133.088202

Publikationsdatum

05-2024

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie, 103045 Lichtoptische Mikroskopie, 103018 Materialphysik

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/c3f6fa9c-9f9a-4bed-b99c-5e2377f49885