6 papers
Tracking microscopic irreversibility during yielding of a colloidal fractal gel with Rheo-Echo-XPCS
William Chèvremont, Julien Bauland, Emmeline Brassac +4
Understanding how microscopic structural dynamics relate to macroscopic mechanical response during yielding remains a central challenge in soft matter physics. Here, we introduce r…
Thermo-Rheological Memory of -Carrageenan Fluid Gels Formed Under Flow
Julien Bauland, Tim J. Wooster, Peter Fischer +1
Fluid gels are soft materials formed by shearing biopolymer solutions during the sol-gel transition. Their ability to yield and flow beyond a critical stress makes them attractive…
Visualizing shear-induced structures in carbon black gels by tomo-rheoscopy
Julien Bauland, Stéphane G. Roux, Stefan Gstöhl +3
Suspensions of attractive particles form space-spanning networks that endow the suspension with solid-like behavior at rest. The microstructure of these colloidal gels depends sens…
Shear-driven memory effects in carbon black gels
Julien Bauland, Thomas Gibaud
In recent years, significant effort has been devoted to developing smart materials whose mechanical properties can adapt under physical stimuli. Particulate colloidal gels, which b…
Anti-thixotropic dynamics in attractive colloidal dispersions: a shear restructuring driven by elastic stresses
Julien Bauland, Gauthier Legrand, Sébastien Manneville +3
Due to rich rheological properties, dispersions of attractive colloidal particles are ubiquitous in industries. Specifically, upon experiencing a sudden reduction in shear rate, th…
Viologen-based supramolecular crystal gels: gelation kinetics and sensitivity to temperature
Julien Bauland, Vivien Andrieux, Frédéric Pignon +3
Supramolecular crystal gels, a subset of molecular gels, form through self-assembly of low molecular weight gelators into interconnecting crystalline fibers, creating a three-dimen…