Zobrazeno 1 - 10
of 247
pro vyhledávání: '"Dullens, Roel P A"'
Publikováno v:
Published. Journal of Chemical Physics, 159, 064510 (2023)
During devitrification, pre-existing crystallites grow by adding particles to their surface via a process that is either thermally activated (diffusive mode) or happens without kinetic barriers (fast crystal growth mode). It is yet unclear what facto
Externí odkaz:
http://arxiv.org/abs/2304.13483
Autor:
Crothers, Ruth A., Orr, Nicholas H. P., van der Meer, Berend, Dullens, Roel P. A., Yanagishima, Taiki
Publikováno v:
Published in Langmuir, 2023
We optimize and characterize the preparation of 3-trimethoxysilyl propylmethacrylate (TPM) colloidal suspensions for three-dimensional confocal microscopy. We revisit a simple synthesis of TPM microspheres by nucleation of droplets from pre-hydrolyze
Externí odkaz:
http://arxiv.org/abs/2304.07049
Autor:
Ulbrich, Justin-Aurel, Fernandez-Rico, Carla, Rost, Brian, Vialetto, Jacopo, Isa, Lucio, Urbach, Jeffrey S., Dullens, Roel P. A.
Anisotropic colloidal particles exhibit complex dynamics which play a crucial role in their functionality, transport and phase behaviour. In this work, we investigate the two-dimensional diffusion of smoothly curved colloidal rods -- also known as co
Externí odkaz:
http://arxiv.org/abs/2211.07274
Interparticle friction plays a governing role in the mechanics of particulate materials. However, virtually all experimental studies to date rely on measuring macroscopic responses, and as such it remains largely unknown how frictional effects emerge
Externí odkaz:
http://arxiv.org/abs/2209.12703
Autor:
Bell-Davies, Miranda C. R., Codina, Joan, Curran, Arran, Dobnikar, Jure, Dullens, Roel P. A., Pagonabarraga, Ignacio
Publikováno v:
Journal of Chemical Physics; 5/14/2024, Vol. 160 Issue 18, p1-14, 14p
Publikováno v:
Phys. Rev. Lett. 127, 215501 (2021)
Unlike crystals, glasses age or devitrify over time, reflecting their non-equilibrium nature. This lack of stability is a serious issue in many industrial applications. Here, we show by numerical simulations that the devitrification of quasi-hard-sph
Externí odkaz:
http://arxiv.org/abs/2011.09259
Publikováno v:
Phys. Rev. X 11, 021056 (2021)
The rotational Brownian motion of colloidal spheres in dense suspensions reflects local hydrodynamics and friction, both key to non-linear rheological phenomena such as shear-thickening and jamming, and transport in crowded environments, including in
Externí odkaz:
http://arxiv.org/abs/2007.05027
In this paper we study the process termed thermal regelation at single particle level. We experimentally extract the physical parameters that determine the interactions between ice and the silica particle for the regelation process. As the premelted
Externí odkaz:
http://arxiv.org/abs/2006.15625
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Publikováno v:
Phys. Rev. Lett. 123, 098002 (2019)
We report a straightforward, model-free approach for measuring pair potentials from particle-coordinate data, based on enforcing consistency between the pair distribution function measured separately by the distance-histogram and test-particle insert
Externí odkaz:
http://arxiv.org/abs/1901.04960