Bavand Keshavarz

Journal article Nature Physics · August 1, 2023 Featured Publication Soft particulate gels are composed of a small amount of particulate matter dispersed in a continuous fluid phase. The solid components assemble to form a porous matrix, providing rigidity and control of the mechanical response, despite being the minority c ... Full text Cite

Time-connectivity superposition and the gel/glass duality of weak colloidal gels.

Journal article Proceedings of the National Academy of Sciences of the United States of America · April 2021 Featured Publication Colloidal gels result from the aggregation of Brownian particles suspended in a solvent. Gelation is induced by attractive interactions between individual particles that drive the formation of clusters, which in turn aggregate to form a space-spanning stru ... Full text Cite

Rotary atomization of newtonian and viscoelastic liquids

Journal article Physical Review Fluids · March 1, 2020 Featured Publication We study the dynamics of fragmentation for Newtonian and viscoelastic liquids in rotary atomization. In this common industrial process centripetal acceleration destabilizes the liquid torus that forms at the rim of a spinning cup or disk due to the Rayleig ... Full text Cite

Deciphering How the Viscoelastic Properties of Mussel-Inspired Metal-Coordinate Transiently Cross-Linked Gels Dictate Their Tack Behavior.

Journal article Langmuir : the ACS journal of surfaces and colloids · December 2019 Featured Publication In recent years, researchers have incorporated mussel-inspired metal-coordinate cross-links into various types of gels to improve their mechanical properties, particularly toughness and self-healing. However, not much is understood about how the linear mec ... Full text Cite

Time-Resolved Mechanical Spectroscopy of Soft Materials via Optimally Windowed Chirps

Journal article Physical Review X · December 6, 2018 Featured Publication The ability to measure the bulk dynamic behavior of soft materials with combined time and frequency resolution is instrumental for improving our fundamental understanding of connections between the microstructural dynamics and the macroscopic mechanical re ... Full text Cite

Ligament Mediated Fragmentation of Viscoelastic Liquids.

Journal article Physical review letters · October 2016 Featured Publication The breakup and atomization of complex fluids can be markedly different than the analogous processes in a simple Newtonian fluid. Atomization of paint, combustion of fuels containing antimisting agents, as well as physiological processes such as sneezing a ... Full text Cite