Sciences et Ingénierie de la Matière Molle

Rheology of Dense Suspensions : Tailored Particles for Tunable Friction

Armand Hakopian — 2025-10-30T10:34:15Z

Proposition de stage
Laboratoire Sciences et Ingénierie de la Matière Molle, (SIMM)
Adresse : ESPCI, 10 Rue Vauquelin 75005 Paris
Directeur du laboratoire : Jean-Baptiste d'Espinose
Responsables du projet : Nicolas SANSON, Jean COMTET, Bruno BRESSON
Contact : ; ;
Internship with possibility for extension as a fully-funded PhD (ANR PEGASUS)
Context :
Suspensions of solid particles in a liquid (e.g., cement paste, ocean sediments, landslides) exhibit a range of peculiar (…)

- Propositions de stage / Col-droite-postes

Turgor pressure & twist instabilities

Armand Hakopian — 2025-10-31T10:55:24Z

Proposition de stage
Laboratoire Sciences et Ingénierie de la Matière Molle, (SIMM)
Adresse : ESPCI, 10 Rue Vauquelin 75005 Paris
Directeur du laboratoire : Jean-Baptiste d'Espinose
Responsables du projet : Etienne Barthel, Alba Marcellan
Contact :
Morphogenesis driven by gel swelling has been extensively studied since the 1970s, beginning with the classic case of surface creasing (cf the surface of dry goat cheese). Recently, while developing new tough and bio-based gel (…)

- Propositions de stage / Col-droite-postes

Freezing water under nanoscale confinement

Armand Hakopian — 2025-11-03T10:06:17Z

Proposition de stage
Laboratoire Sciences et Ingénierie de la Matière Molle, (SIMM)
Adresse : ESPCI, 10 Rue Vauquelin 75005 Paris
Directeur du laboratoire : Jean-Baptiste d'Espinose
Responsables du projet : Jean Comtet, Guilhem Mariette
Contact : / https://blog.espci.fr/jcomtet/
Context : At the nanoscale, water exhibits remarkable deviations from bulk behavior. When confined between solid surfaces, it forms ordered hydration layers that display viscoelastic and even (…)

- Propositions de stage / Col-droite-postes

Flows in ultra-thin polymer films

Armand Hakopian — 2025-11-04T14:50:06Z

Proposition de stage
Laboratoire Sciences et Ingénierie de la Matière Molle, (SIMM)
Adresse : ESPCI, 10 Rue Vauquelin 75005 Paris
Directeur du laboratoire : Jean-Baptiste d'Espinose
Responsables du projet : Emilie VERNEUIL, Jean COMTET
Contact :
The stability and homogeneity of liquid films is crucial to processes producing coatings. In the case of silicone oils, a rough estimate of the long-range interactions such as Van der Waals' shows that such films should bear a uniform (…)

- Propositions de stage / Col-droite-postes

A model system to study thin liquid films coalescence : Binary mixtures

Armand Hakopian — 2025-11-04T14:56:46Z

Proposition de stage
Laboratoire Sciences et Ingénierie de la Matière Molle, (SIMM)
Adresse : ESPCI, 10 Rue Vauquelin 75005 Paris
Responsables du projet : Emilie VERNEUIL, Francois LEQUEUX
Contact :
Internship with possibility for extension as a fully-funded PhD (ANR COLIFLOW)
Coalescence is widely studied in surfactant solutions. Nevertheless, a prediction of the lifetimes of liquid films between bubbles is still lacking due to intricate couplings between flow and (…)

- Propositions de stage / Col-droite-postes

Anisotropic effects on the rheology of foams containing fibers

Armand Hakopian — 2025-11-05T11:02:04Z

Proposition de stage
Laboratoire Sciences et Ingénierie de la Matière Molle, (SIMM)
Adresse : ESPCI, 10 Rue Vauquelin 75005 Paris
Directeur du laboratoire : Jean-Baptiste d'Espinose
Responsables du projet : Emilie VERNEUIL, Anniina SALONEN, Antoine CHATEAUMINOIS
Contact :
Internship with possibility for extension as a fully-funded PhD (CIFRE)
Emerging efforts at reducing water consumption in water-based industrial processes have led to an increased use of foams as a carrier (…)

- Propositions de stage / Col-droite-postes

Coarsening-driven bubble dynamics in wet foam

Armand Hakopian — 2026-03-09T12:46:13Z

Proposition de stage
Laboratoire Sciences et Ingénierie de la Matière Molle, (SIMM)
Adresse : ESPCI, 10 Rue Vauquelin 75005 Paris
Directeur du laboratoire : Jean-Baptiste d'Espinose
Responsables du projet : Anniina Salonen, Reinhard Höhler
Contact : ,
Possibility of PhD : yes (funding pending from ESA/CNES)
Aqueous foams are dispersions of gas bubbles in a liquid. These out of equilibrium systems will evolve towards disappearance through several ageing mechanism. Surface (…)

- Propositions de stage / Col-droite-postes

Coarsening-driven bubble dynamics in wet foam

Armand Hakopian — 2025-11-12T09:30:28Z

Proposition de thèse
Sciences et Ingénierie de la Matière Molle (SIMM), UMR 7615 Adresse : ESPCI – 10 rue Vauquelin – 75231 Paris Cedex 05 Directeur de l'Unité : Jean-Baptiste d'Espinose Contact : Contact : Anniina Salonen (), Reinhard Höhler ()
PhD funding pending from European Space Agency (ESA)/Centre National des Etudes Spatiales (CNES)
Aqueous foams are dispersions of gas bubbles in a liquid. These out of equilibrium systems will evolve towards disappearance through several ageing (…)

- Propositions de thèses / Col-droite-postes

Solid lubricants : from spacecraft to pencil friction

Armand Hakopian — 2026-01-22T21:30:07Z

Proposition de stage
Laboratoire Sciences et Ingénierie de la Matière Molle, (SIMM)
Adresse : ESPCI, 10 Rue Vauquelin 75005 Paris
Directeur du laboratoire : Jean-Baptiste d'Espinose
Responsables du projet : Jean Comtet
Contact : ; https://blog.espci.fr/jcomtet/
Reducing friction between materials is a long-standing challenge in tribology—the science of friction, wear, and lubrication. In everyday machines, friction is usually controlled with liquid or semi-solid lubricants such (…)

- Propositions de stage / Col-droite-postes