Luxembourg Institute of Science and Technology

Usinor

Massachusetts Institute of Technology

Arcelormittal

Arcelormittal France

H.e.f.

Ucl Business Plc

Centre De Recherche Public-gabriel Lippmann

Eurofoil Luxembourg S.a.

Patrick Choquet

Daniel Chaleix

Nicolas Boscher

David Duday

Colin Scott

Christophe Olier

Bernard Lacour

Vincent Puech

Gérard Baravian

Alain Lamande

Karen K Gleason

Eric Silberberg

Bruno Schmitz

Mathieu Gerard

Olivier Blandenet

Christophe Detrembleur

Thierry Leon Lagarde

Minghui Wang

Thomas Urios

Simon Bulou

Stephane Verdier

Thomas Gaulain

Sergey Ershov

Kamal Baba

Thierry Léon Lagarde

Nicolas D Boscher

Florian Hilt

Maryline Moreno-Couranjou

Rodolphe Mauchauffe

Christelle Vreuls

Cecile Vandeweerdt

Jean-Baptiste Chemin

Miguel Quesada Gonzalez

Cécile Vandeweerdt

Caroline Knapp

Stéphane Verdier

A coated steel substrate coated with a first coating including above 40 wt. % of chromium and optionally one or several elements chosen from yttrium, silicon, calcium, titanium, zirconium, vanadium, niobium and nickel in an amount below 10 wt. % for each element, the balance being chromium and a second coating including from 2 to 30 wt. % of Aluminum, from 10 to 40 wt. % of chromium and optionally one or several elements chosen from yttrium, silicon, calcium, titanium, zirconium, vanadium, niobium and nickel in an amount below 10 wt. % for each element, the balance being iron, the steel substrate including Cr≤2.0% by weight; a method for the manufacture of this coated steel substrate; a method for the manufacture of a coated hot steel product; a coated hot steel product and the use of a hot steel product.

Coated steel substrate, a method for the manufacture of a coated steel substrate, a method for manufacture of a steel product and a steel product

A post-discharge plasma coating device for a wired substrate comprising an inner tubular electrode on an inner tubular wall for receiving the substrate and a precursor moving axially in a working direction; an outer tubular electrode coaxial with, and surrounding, the inner tubular electrode. The inner and outer electrodes are configured to be supplied with an electrical power source for producing a plasma when a plasma gas is supplied between the electrodes and is thereby excited, the plasma excited gas flowing axially in the working direction and reacting with the precursor in a coating area at the end of the inner tubular wall in the direction. The inner tubular wall extends axially towards the coating area at least until, in various instances beyond, the end of the outer electrode, in the working direction and at least one dielectric tubular wall extends axially between the inner tubular electrode and the outer tubular electrode.

Post-discharge plasma coating device for wired substrates

A solvent-free plasma method for depositing an adherent catechol and/or quinone functionalised layer to an inorganic or organic substrate from a precursor which comprises at least a quinone group; a protected or unprotected catechol group; a molecule substituted by a quinone group and/or a protected or unprotected catechol group; and/or a natural or synthetic derivative of a catechol group and/or a quinone group; wherein the quinone group is a 1,2-benzoquinone group and the catechol group is a 1,-dihydroxybenzene group.

Plasma deposition method for catechol/quinone functionalised layers

The invention provides a method for forming regular polymer thin films on a substrate using atmospheric plasma discharges. In particular, the method allows for the deposition of functional polymer thin films which require a high regularity and a linear polymer structure.

Method for forming regular polymer thin films using atmospheric plasma deposition

According to the process, the filiform component is continuously linearly moved through magnetic dipoles arranged opposite each other and around a tube constituting a treatment chamber, and the microwave energy is introduced between at least two magnetic dipoles.

Method and device for generating a plasma excited by a microwave energy in the electron cyclotron resonance (ECR) domain, in order to carry out a surface treatment or produce a coating around a filiform element

Described herein are facile, one-step initiated plasma enhanced chemical vapor deposition (iPECVD) methods of synthesizing hyper-thin (e.g., sub-100 nm) and flexible metal organic covalent network (MOCN) layers. As an example, the MOCN may be made from zinc tetraphenylporphyrin (ZnTPP) building units. When deposited on a membrane support, the MOCN layers demonstrate gas separation exceeding the upper bounds for multiple gas pairs while reducing the flux as compared to the support alone.

Ultra-thin, pinhole-free, flexible metal-organic films

The invention is directed to a method for manufacturing a hydrophobic or superhydrophobic surface comprising the steps of: (a) providing a substrate with a surface roughness Rbetween 0.1 and 1.0 &#x3bc;m and (b) exposing the substrate to a filamentary atmospheric pressure dielectric barrier discharge plasma which is fed by a reaction gas and siloxane-forming material in order to form a superhydrophobic siloxane layer over at least a portion of the surface of the substrate. Step (b) is operated with an electrical excitation frequency of 15,000 Hz to 35,000 Hz and a power density between 0.5 to 10 W&#xb7;cm. The siloxane layer produced in step (b) shows thereby a micro-structure and a nano-structure with droplet 'sticking' properties (high water sliding angle).

Method for manufacturing a superhydrophobic surface, surface so obtained and use of it

An apparatus is provided that performs continuous cleaning of a surface of a grounded material which is coated with an organic substance. The apparatus includes a plurality of electrodes covered with a dielectric and disposed along the surface of the material. The electrodes are connected to a high-voltage generator using a MOS power transistor connected to a step up transformer to convert low-voltage pulses generated from a low-voltage power supply into high-voltage pulses. The apparatus is configured to provide a pulsed electric field wherein the maximum voltage of the positive pulses Uis greater than the arc-striking voltage U, and the maximum absolute value of the voltage of the negative pulses Uis less than the striking voltage U.

Method of cleaning the surface of a material coated with an organic substance and generator and device for carrying out said method

The invention relates to a process for coating a substrate (S) whereby a metal alloy layer comprising at least two metallic elements is continuously deposited on the substrate (S) by means of a vacuum deposition facility () comprising a vapor jet coater () for spraying the substrate (S) with a vapor containing the metallic elements in a constant and predetermined relative content, the vapor being sprayed at a sonic velocity. The process is more particularly intended for depositing Zn&#x2014;Mg coatings. The invention also relates to a vacuum deposition facility () for continuously depositing coatings formed from metal alloys, for implementing the process.

Method for coating a substrate and metal alloy vacuum deposition facility

A method for the continuous cleaning of the surface of a material () which is coated with an organic substance. Steps of the method are: introducing the material () into a treatment area which is supplied with a gas stream containing oxygen; earthing the material (); and generating a plasma by imposing an electric field between the surface of the material () and at least one dielectric-covered electrode (), the electric field being pulsed and providing a succession of positive and negative voltage pulses in relation to the material (). Moreover, the maximum voltage of the positive pulses U+ is greater than the arc-striking voltage Ua, and the maximum absolute value of the voltage of the negative pulses U&#x2212; is less than the striking voltage Ua. Also, a generator and a device which are used to carry out this method.

Method of cleaning the surface of a material coated with an organic substrate and a generator and device for carrying out said method

The coating plant includes a device for running a sheet to be coated along a traveling path past a window for the evaporation or sublimation of elements A an B, sources for the evaporation or sublimation of elements A and element B placed successively in a direction parallel to the traveling path so as to emit elements A and B through the window and a screen for reducing the angle of emission from the source of element B below the limit represented by an exit edge of the window, the screen being mounted so as to move translationally perpendicular to the traveling path and to move along the traveling path between the source of element A and the source of element B so as to obtain either a &mdash;A&mdash;AB&mdash;A&mdash; or a &mdash;B&mdash;AB&mdash;B&mdash;coating.

Steel sheet provided with a coating comprising a main layer of zinc-chromium alloy the predominant phase of which has a delta and/or zeta structure

The coating plant includes a device for running a sheet to be coated along a traveling path past a window for the evaporation or sublimation of elements A an B, sources for the evaporation or sublimation of elements A and element B placed successively in a direction parallel to the traveling path so as to emit elements A and B through the window and a screen for reducing the angle of emission from the source of element B below the limit represented by an entry edge of the window, the screen being mounted so as to move translationally perpendicular to the traveling path and to move along the traveling path between the source of element A and the source of element B so as to obtain either a -A-AB-A- or a -B-AB-B- coating.

Coating plant for obtaining a coated sheet

Growing community of inventors

Longeville les Metz, France

Patrick Choquet