Zobrazeno 1 - 10
of 278
pro vyhledávání: '"Del Gado, E."'
Identifying the necessary conditions for the onset of rigidity in a gel remains a challenge. It has been suggested that local particle coordination could be used to establish such conditions, but rigid gels occur for various coordination numbers. Com
Externí odkaz:
http://arxiv.org/abs/2307.13315
Publikováno v:
Phys. Rev. E, 78, 041404 (2008)
We present a systematic study of dynamical heterogeneity in a model for permanent gels, upon approaching the gelation threshold. We find that the fluctuations of the self intermediate scattering function are increasing functions of time, reaching a p
Externí odkaz:
http://arxiv.org/abs/0811.0945
Experimental results have shown that the kinetics of bond formation in chemical crosslinking of gelatin solutions is strongly affected not only by gelatin and reactant concentrations but also by the solution pH. We present an extended numerical inves
Externí odkaz:
http://arxiv.org/abs/0806.3202
Autor:
Del Gado, E., Kob, W.
We investigate the gel formation from the equilibrium sol phase in a simple model that has the characteristics of (colloidal) gel-forming systems at a finite temperature. At low volume fraction and low temperatures, particles are linked by long-livin
Externí odkaz:
http://arxiv.org/abs/0708.3227
We study the formation of a colloidal gel by means of Molecular Dynamics simulations of a model for colloidal suspensions. A slowing down with gel-like features is observed at low temperatures and low volume fractions, due to the formation of persist
Externí odkaz:
http://arxiv.org/abs/0707.4071
We compare the slow dynamics of irreversible gels, colloidal gels, glasses and spin glasses by analyzing the behavior of the so called non-linear dynamical susceptibility, a quantity usually introduced to quantitatively characterize the dynamical het
Externí odkaz:
http://arxiv.org/abs/cond-mat/0612521
We study the structure and the dynamics in the formation of irreversible gels by means of molecular dynamics simulation of a model system where the gelation transition is due to the random percolation of permanent bonds between neighboring particles.
Externí odkaz:
http://arxiv.org/abs/cond-mat/0607815
Autor:
Abete, T., Del Gado, E., Serughetti, D. Hellio, de Arcangelis, L., Djabourov, M., Coniglio, A.
Publikováno v:
Journal of Chemical Physics 125, 174903 (2006)
In chemical crosslinking of gelatin solutions, two different time scales affect the kinetics of the gel formation in the experiments. We complement the experimental study with Monte Carlo numerical simulations of a lattice model. This approach shows
Externí odkaz:
http://arxiv.org/abs/cond-mat/0607560
In colloidal suspensions, the competition between attractive and repulsive interactions gives rise to a rich and complex phenomenology. Here, we study the equilibrium phase diagram of a model system using a DLVO interaction potential by means of mole
Externí odkaz:
http://arxiv.org/abs/cond-mat/0601298
Autor:
Del Gado, E., Kob, W.
Publikováno v:
Phys. Rev. Lett. 98, 028303 (2007)
We use molecular dynamics computer simulations to investigate the relaxation dynamics of a simple model for a colloidal gel at a low volume fraction. We find that due to the presence of the open spanning network this dynamics shows at low temperature
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510690