摘要:
The invention relates to a thin film coating method using a thin film having minimal adhesion in relation to biological species, of the type comprising the deposition of a thin film with —COOH function. The invention is characterised in that the method includes a step involving the vapour phase chemical decomposition of a carbonaceous precursor containing neither a carboxyl group nor a carbonyl group, in the presence of water. The invention is particularly suitable for use in the field of thin films.
摘要:
This method for texturing a DLC coating comprises depositing a single layer of balls or spheres on the free surface of the DLC coating; dry-etching the DLC coating using oxygen plasma; and lastly, cleaning the surface of said coating by eliminating the balls or spheres.
摘要:
A thermal management system configured to be installed between a heat source and a heat sink, including a first heat conductor and a second heat conductor, a thermal switch configured to allow or prevent thermal connection between the first and second heat conductors, the thermal switch including at least one thermally conductive material that can connect the first and second conductors by a change in its volume, and the thermal switch including a controller configured to transfer thermal energy to the phase-change material to change a connection state. The connection is made when the heat source goes above a critical temperature, since the connection enables a heat flux to be established between the heat source and the heat sink.
摘要:
A device forming a manometer, configured to measure pressure of a biphasic fluid in a fluidic network, including: a first channel inside which a biphasic fluid is able to flow; a second channel emerging into the first channel, wherein the second channel is blind, with each of its dimensions less than capillary length of the fluid's liquid phase, and with at least one of its lengthways wall having a surface energy gradient that decreases from its inlet to the end. The surface energy gradient enables the wetting angle of the meniscus of the fluid's liquid phase to be increased in the blind channel from its inlet to the end. Such a device may find application to measurement of pressure of a biphasic fluid in a heat exchanger or in a fuel cell.
摘要:
This method for texturing a DLC coating comprises depositing a single layer of balls or spheres on the free surface of the DLC coating; dry-etching the DLC coating using oxygen plasma; and lastly, cleaning the surface of said coating by eliminating the balls or spheres.
摘要:
A mould for objects made of polymer material is produced by successively depositing a barrier thin layer and a thin layer of diamond-like carbon on at least a part of a metal support. The thin layer of diamond-like carbon is then nanopatterned with a predetermined pattern presenting a form factor of more than 1. Nanopatterning is performed by selective chemical etching in dry phase through a hard mask and etching stops at an interface between the thin layer of diamond-like carbon and the barrier thin layer. The hard mask used was formed beforehand on a free surface of the thin layer of diamond-like carbon by selective chemical etching in dry phase performed through a void lattice delineated by nanoparticles deposited beforehand on a free surface of said hard mask. The barrier thin layer and the nanopatterned thin layer of diamond-like carbon form a bilayer coating presenting a thickness comprised between about 100 nm and about 10 μm.