• Corpus ID: 227228163

The Physics of Drying of Colloidal Dispersion: Pattern Formation and Desiccation Cracks

@article{Lama2020ThePO,
  title={The Physics of Drying of Colloidal Dispersion: Pattern Formation and Desiccation Cracks},
  author={Hisay Lama and Ranajit Mondal},
  journal={arXiv: Soft Condensed Matter},
  year={2020}
}
Drying of colloidal dispersion and their consolidation into a particulate deposit is a common phenomenon. This process involves various physical processes such as diffusion of liquid molecules into the ambient atmosphere and advection of dispersed particles via evaporation driven flow. The colloidal particles forming a dried deposit exhibits distinct patterns and frequently possess structural defects such as desiccation cracks. This chapter gives an introductory review of the drying of… 

References

SHOWING 1-10 OF 95 REFERENCES

Drying drops Drying drops containing solutes : From hydrodynamical to mechanical instabilities

The drying of complex fluids involves a large number of microscopic phenomena (transport and organization of non-volatile solutes) as well as hydrodynamic and mechanical instabilities. These…

Role of evaporation rate on the particle organization and crack patterns obtained by drying a colloidal layer

A scientific hurdle in manufacturing solid films by drying colloidal layers is preventing them from fracturing. This paper examines how the drying rate of colloidal liquids influences the particle…

Influence of the drying configuration on the patterning of ellipsoids - concentric rings and concentric cracks.

The results presented show that the drying of colloidal dispersions in the sphere-on-plate configuration enables the fabrication of a long range ordered assembly of particles over an area as large as few square millimeters.

Tailoring crack morphology in coffee-ring deposits via substrate heating.

It is found that the morphology of cracks formed in particulate films dried at substrate temperature, Tsub = 25 Β°C is markedly different from that of cracked formed at Tsub > 45 Β°C, which means that the cracks are disordered in the former case, but ordered and periodic in the latter.

Self-assembly of colloidal particles from evaporating droplets: role of DLVO interactions and proposition of a phase diagram.

The results show that the pH of the solution influences the dried deposit pattern, which can be ring-like or more uniform, and a phase diagram is proposed that explains three types of deposits commonly observed experimentally, such as a peripheral ring, a small central bump, or a uniform layer.

Patterns in Drying Drops Dictated by Curvature-Driven Particle Transport.

This work proposes a novel particle transport route, which involves adsorption of particles to the interface and subsequent curvature-driven migration of the particles along the interface to control the distribution of particles in the dried patterns.

Self-organized pattern formation of cracks perpendicular to the drying direction of a colloidal suspension

A new cracking mode in silica colloidal films formed via quasi-one-dimensional directional drying is presented. Unlike typical cracking parallel to the drying direction, unique periodic cracks…

Cracking in drying latex films.

The critical stress at cracking and the accompanying crack spacing is calculated, in general agreement with the observed values, by employing the stress-strain relation for a drying latex film along with the well-known Griffith's energy balance concept.

Drying of thin colloidal films

  • A. Routh
  • Physics
    Reports on progress in physics. Physical Society
  • 2013
The reasons for cracking in thin films is explored as well as various methods to minimize its effect, including the physical reason for enhanced evaporation at the edge of droplets.

Patterning of colloids into spirals via confined drying.

It is reported that the drying of charge stabilized colloidal dispersions between two parallel plates is a route to intriguing self-assembly patterns when the dispersions are dried in parallel plate confinement, particles deposit as spiral patterns after the complete evaporation of the solvent irrespective of the confinement spacing.
...