iMMC in pictures

IMMC

Through the "iMMC in pictures" gallery, we want to showcase our scientific and technical work from a less conventional angle, and reveal the beauty and mystery of the images we capture every day.

iMMC in pictures

Unveiling the tempestuous mixing above a heated porous...

This image illustrates vertical temperature gradients during turbulent convection within a mixed pure-fluid/porous domain. The porous region, shown as a white parallelepiped at the base of the...
iMMC in pictures

The swirl of air behind a wind turbine

This image depicts the vorticity magnitude in the wake of a large wind turbine operating in realistic turbulent wind conditions. Each blade produces a vortex tube that is shed from its tip, giving...
iMMC in pictures

Atomic Dumbbells

We often use dumbbells to strengthen our muscles. Mg2Si particles composed of dumbbells can also significantly strengthen metallic alloys. The image shows beautiful arrangement of Mg and Si atoms...
iMMC in pictures

No Plan(et) B

The main objective of this study was to create an innovative iron-based material for bioresorbable stent implants. What you see here is an SEM image of a meticulously polished pure iron sample...
iMMC in pictures

Indium islands

Physical Vapor Deposition (PVD) is used to deposit continuous thin films with thickness in the hundreds of nanometers range. For some metals with low melting temperature, deposition proceeds in...
iMMC in pictures

Breaking waves

This is an optical microscopy image of a crack propagating left to right in a 1.5mm thick high strength steel sheet. This "wave" pattern, known as crack tip flipping, is the result of an...
iMMC in pictures

The MAX-cave

Fracture surface of a MAX-phase ceramic inclusion made of Ti2AlC embedded in a copper matrix, as observed using scanning electron microscopy. © Marie-Stéphane Colla
iMMC in pictures

The ghost of the crystal cave

This image comes from SEM fractography of sintered iron oxides powders. The general context of the research was to study the use of iron as an efficient, CO2-free energy carrier, and in particular...
iMMC in pictures

Coherence in chaos

The flow in the mixing chamber of a supersonic ejector generates two mixing layers between the driving supersonic flow and the entrained subsonic flow. It is those highly turbulent mixing layers...
iMMC in pictures

Kites: from kid’s play to green energy

Airborne wind energy systems gather energy from the wind using a kite (rigid or soft wing) that pulls on a cable. The cable is connected to the ground and unwinds from a drum, that drives a...
iMMC in pictures

Dancing vortices

Instantaneous dimensionless vorticity field of a sinusoidally oscillating cylinder in a flow at Re = 500. The numerical simulation has been performed with the weak coupling method developed by P....
iMMC in pictures

Khaleesi Crystals

Knowing about crystal formation of organic compounds is knowing about pathways to improve the patient’s life. The crystal shape and size impact drug aspects such as flowability, compatibility,...
iMMC in pictures

Ni-cely Agglomerated

The picture is extracted from a Scanning Electron Microscope (SEM) observing a Ni-BaH2 powder catalyst, which I am researching on for the application of ammonia production using metal hydrides...
iMMC in pictures

The death of Dame Jeanne

Explosion of a dame Jeanne during an experiment for the "Printemps des Sciences " show.  © Hervé Delafontaine  
iMMC in pictures

The Battle of Earth and water

The photo illustrates the power of the flow (fast transient flow) through a dike when a breach or channel forms through the dike. What is the origin of this breach? The erosive action of water...