Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Lionel Filhol

Fabrice Emieux

Stéphanie Thollon

Pascal Tiquet

Sebastien Donet

Sébastien Donet

Stephanie Thollon

Sébastien Donnet

A device for vapor deposition of chemical species on support grains of spherical or similar shape disposed in a fluidized bed. The device includes a first chamber including a fluidized bed in which a funnel-shaped fluidizer element is housed to receive support grains of spherical or similar shape; a second chamber in fluid flow connection with the first chamber to deliver precursors in a vapor phase of chemical species to be deposited on the support grains and to convey a fluidizing gas towards the first chamber; and a flute at an inlet to the fluidizer element to control distribution of the vapor phase precursors and the fluidizing gas within the fluidizer element. The distributor flute includes one or more outer grooves, each groove including a first portion oriented along the longitudinal axis of the flute and a second portion winding helically around the axis to generate a fluidizing gas vortex within the first chamber.

Device for the synthesis of nanoparticles by fluidized-bed chemical vapor deposition

A method and a device for infiltration of a structure made of a porous material by chemical vapor deposition. According to the method, a first face of the porous material structure is exposed to a gaseous flow, and the second face is maintained at least partially free from any contact.

Method and device for the infiltration of a structure of a porous material by chemical vapour deposition

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Saint Sauveur, France

Lionel Filhol