Seminars

Contact :
Hèléne Berthoumieux
helene.berthoumieux (arobase) espci.psl.eu
Tel : +33 (0) 1 40 79 xx xx

Paddy Royall
paddy.royall (arobase) espci.fr
Tel : +33 (0) 1 40 79 xx xx

Map

Gulliver seminars take place on Mondays at 11:30 AM in the F304 room, and typically last one hour including questions. The seminars are in English, and the scientific topics are mainly those studied in the laboratory.



Gulliver Seminar : Noushine Shahidzadeh (University of Amsterdam)

Lundi 5 février de 11h30 à 13h00 - Holweck

Self-organizing crystallization induced by evaporation

Salt crystallization by evaporation is widely used in industrial processes, but is also a natural phenomenon occurring frequently around us whenever salt solutions are present and the water evaporates. This can lead to very spectacular natural landscapes but is also a major cause of the weathering of artworks, buildings, soil sodification and corrosion of outdoor electronics. I will discuss the dynamics of crystal growth during evaporation from bulk solution and when salt creeping occurs and show the mechanism behind this self-amplifying process that leads to the formation of 'salt trees'. I will also show how by changing the wettability and/or the porosity of the surface in contact with the salt solution, self-organized crystallization with a fractal morphology spontaneously develops upon drying. I will discuss the importance of the ion advection and diffusion on the crystallization patterns that develop and relate our results to salt crystallization damage observed in our cultural heritage and for works of art.

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Recent seminars  (8)

General recommendations for the speakers

The audience is often heterogeneous - because of the wide range of scientific topics covered in the lab - so planning a talk for a broader audience would be preferred. The seminar is in English, and speakers are thus invited to prepare their slides in English.

The seminar starts at 11:30 AM. The speaker is asked to arrive in the lab at least 15 minutes in advance to set up their computer. The talks last typically 45 minutes, and are followed by a discussion time.

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Seminars (1)

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