Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Interfacial Crystallization within Liquid Marbles

Version 1 : Received: 25 September 2020 / Approved: 25 September 2020 / Online: 25 September 2020 (15:30:00 CEST)

A peer-reviewed article of this Preprint also exists.

Bormashenko, E.; Roy, P.K.; Shoval, S.; Legchenkova, I. Interfacial Crystallization within Liquid Marbles. Condens. Matter 2020, 5, 62. Bormashenko, E.; Roy, P.K.; Shoval, S.; Legchenkova, I. Interfacial Crystallization within Liquid Marbles. Condens. Matter 2020, 5, 62.

Journal reference: Condens. Matter 2020, 5, 62
DOI: 10.3390/condmat5040062

Abstract

We report interfacial crystallization in droplets of saline solutions placed on superhydrophobic surfaces and liquid marbles filled with the saline. Evaporation of saline droplets deposited on superhydrophobic surface resulted in the formation of cup-shaped millimeter-scaled residues. The formation of the cup-like deposit is reasonably explained within the framework of the theory of the coffee-stain effect, namely, the rate of heterogeneous crystallization along the contact line of the droplet is many times higher than in the droplet bulk. Crystallization within evaporated saline marbles, coated with lycopodium particles, depends strongly on the evaporation rate. Rapidly evaporated saline marbles yielded dented shells built of a mixture of colloidal particles and NaCl crystals. We relate the formation of these shells to the interfacial crystallization promoted by hydrophobic particles coating the marbles, accompanied with the upward convection flows supplying the saline to the particles, serving as the centers of interfacial crystallization. Convective flows prevail over the diffusion mass transport for the saline marbles heated from below.

Subject Areas

interfacial crystallization; liquid marble, hydrophobic particle; superhydrophobic surface; coffee-stain effect.

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.