L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Centre National De La Recherche Scientifique

L'air Liquide, Societe Anonyme a Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude

Michelin Recherche Et Technique S.a.

Electricite De France - Service National

Universite Dé Lorraine

Université De Limoges

Ecole Nationale Superieure De Ceramique Industrielle (ensci)

Centre De Transfert De Technologies Ceramiques (c.t.t.c.)

Ecole Nationale Superieure De Ceramique Industrielle

Ecole National Supérieure De Céramique Industrielle (e.n.s.c.i.)

Thierry Chartier

Emmanuel Custodero

Daniel Gary

Pascal Del-Gallo

Gilles Cannet

Emmanuel Baune

Pascal Del Gallo

François Guillotin

Jean-François Silvain

Jérome Cantonnet

Jean-François Imbault

Pierre-Marie Geffroy

Thierry Mazet

Michel Vilasi

Stéphane Mathieu

Laurent Prost

Nicolas Richet

Gregory Etchegoyen

Laure M Simonot

Nicolas Ramenatte

Jean-Pierre Bonnet

Agnes Smith

Patrice Goeuriot

Fabrice Rossignol

Rémi Noguera

Hervé Chardin

Sébastien Doublet

Francedillaois Valdivieso

Jean-Marc Laurent

Marianne Le Boulch

Martine Lejeune

Youssef El Hafiane

Maksoud Oudjedi

Martine Dubois

Sebastien Doublet

Agnès Smith

Grégory Etchegoyen

Christophe Chaput

Franck Doreau

Marie-Pierre Comte-Gautron

Fabrice c/o Université De Limoges Rossignol

Process for depositing a corrosion-protection coating on at least one portion of the surfaces of a metallic substrate having at least one cavity with an equivalent diameter e&#x3c;2 mm and a length/width ratio of greater than 150, using an aqueous suspension comprising powder of the metal to be deposited on the substrate combined with an agent for protecting the surface of the metal powder, a diluent, and at least one additive, the particles of the suspension each having an equivalent diameter d such that d&#x2264;e/10.

Method for depositing an anti-corrosion coating

A method of preparing a composite includes the following steps. A powder blend is sintering while an oxygen partial pressure (pO) of a gaseous atmosphere surrounding the powder blend is controlled. Before the sintering, a shape is formed from the powder blend. After the forming and before the sintering, binder is removed from the powder blend. The powder blend comprises binder, a mixed electronic/oxygen Oanionic conducting compound (C) and a compound (C) chosen from MgO and BaTiO. The resultant composite comprises at least 75 vol % of compound (C), from 0.01 to 25 vol % of compound (C), and from 0 vol % to 2.5 vol % of compound (C).

Addition of (A) blocking agent(s) in a ceramic membrane for blocking crystalline growth of grains during atmospheric sintering

A method to prepare a thin ceramic or metallic solid-state composition comprising three phases: a material (A), a material (B), and pores, wherein the porous matrix of material (A) has a porosity gradient in the range of about 0% to about 80%, and wherein the pores are partially or completely filled with material (B). Various compositions and methods of use for the prepared composition are also disclosed.

Method of preparing a thin ceramic composition with two materials, the composition thus obtained and the constituent electrochemical cell and membrane

The present invention relates to a container packing structure, characterized in that it comprises a crystalline phase containing 55 to 97% by weight of xonotlite crystallites and 3 to 45% by weight of tobermorite crystallites. It also relates to a method for fabricating such a packing structure, and the container containing same, and its use for storing fluids such as gases.

Gas vessel packing structure having a crystalline phase

The present invention relates to a packing structure for containers, characterized in that it comprises a material of xonotlite and/or tobermorite and/or foshagite crystal structure crystallized in the form of needles, at least 50% by volume of which have a length ranging from 2 to 10 &#x3bc;m and a thickness ranging from 0.2 to 1 &#x3bc;m. Process for manufacturing such a packing structure and gas container containing it.

Gas container packing structure having a material crystallized in needle form

A composite material (M) comprising: at least 75% by volume of a mixed electronic conductor compound oxygen anions O&#x3c;2-&#x3e;(C1) selected from doped ceramic compounds which, at the temperature of use, are present in the form of a crystalline network having ion oxide lattice vacancies and, more particularly, in the form of a cubic phase, a fluorite phase, a perovskite phase, of the aurivillius variety, a Brown-Millerite phase or a pyrochlore phase; and 0.01%-25% by volume of a compound (C2) which is different from compound (C1), selected from oxide-type ceramic materials, non-oxide type ceramic materials, metals, metal alloys or mixtures of said different types of material; and 0%-2.5% by volume of a compound (C) produced from at least one chemical reaction represented by the equation: xFC1+yFC2 - - - &#x3e;zFC3, wherein FC1, FC2 and FC3 represent the raw formulae of compounds (C1), (C2) and (C3) and x, y and z represent rational numbers above or equal to 0. The invention also relates to a method for the preparation and use thereof as mixed conductor material for a membrane catalytic reactor used to synthesize synthetic gas by catalytic oxidation of methane or natural gas and/or as mixed conductor material for a ceramic membrane.

Addition of (a) blocking agent(s) in a ceramic membrane for clocking crystalline growth of grains during atmospheric sintering

Process for manufacturing composite metal/ceramic thin films, consisting of:

Manufacturing process for thin films made of metal /ceramic composite

Producing a three-dimensional multi-material component whereby successive layers of at least one material are printed by a drop ink-jet-type printer including cutting a representation of the multi-material component into remarkable objects; cutting the representation of the component into print layers, as a function of the remarkable objects; for each print layer, establishing a plurality of discrete spatial print path trajectories; for each print layer and for each discrete spatial trajectory, establishing an assembly of printing parameters which are dependent on the nature of the deposited materials and the deposition conditions thereof; and establishing a rule for the spatial and temporal sequencing of the print path of the print layers and of the discrete spatial trajectories as a function of the objects, the relative three-dimensional arrangement thereof and the characteristics of the printing device.

Method and device for the production of a three-dimensional multi-material component by means of ink-jet-type printing

A cement suspension includes the following, in relation to the cement material: water (22-35% by weight); acetic acid (1-10% by weight); plasticizer (up to 8% by weight); and dispersant agent (0-2% by weight), having an apparent viscosity of 0.5-2 Pa&#xb7;s for the casting speed gradient. Pieces of cement that are prepared from the suspension and which can be used as electronic components are also disclosed.

Preparation of cement films by tape casting

Pneumatic tire

The invention concerns a method for making thin films in metal/ceramic composite, characterized in that it consists in: a) preparing a suspension (S) in an organic solvent from a substantially homogeneous mixture of ceramic reinforcements of metal particles, a binder, a plasticizing agent and an organic dispersant, the metal particles constituting at least 5 wt. % of the suspension; b) tape casting the suspension (S) to form a thing film (B), then culminating organic compounds contained in the binder and the plasticizing agent from said thin film; c) densifying the thin film from which said organic compounds have been removed in an oven.

Manufacturing process for thin films made of metal/ceramic composite

There is disclosed a method for preparing a thin ceramic and/or metallic solid-state composition consisting of three phases: a material (A), a material (B) and pores. The concentration of each phase varies continuously from one face of the article to the other in a continuous and controlled gradient. The porous matrix of material (A) has a porosity gradient of 0% to about 80%, the pores being completely or partly filled with material (B). The concentration of material (B) in the article therefore varies from 80% to 0% of small thicknesses.

The invention concerns a method for preparing a thin ceramic material with controlled surface porosity gradient, including (A) infiltrating a porous pore-forming substrate of controlled thickness, with a ceramic material suspension; (B) evaporating the solvent; (C) a step which includes eliminating the pore-forming agents and the various organic additives, and (D) a sintering step. The invention also concerns the use of the ceramic material in the method for preparing a solid electrolyte and a mixed ionic-electronic conductor, in methods for preparing ultra-pure oxygen, for eliminating oxygen from a gaseous atmosphere, for producing heat energy, for preparing gas or liquid filtering membranes, for ceramic/metal joints, for biomaterials and sensors.

Method for preparing a thin ceramic material with controlled surface porosity gradient, and resulting ceramic material

A rubber composition usable for the manufacture of tires, based on at least one diene elastomer, a reinforcing inorganic filler and a coupling agent providing the bond between the inorganic filler and the elastomer, wherein said inorganic filler comprises a silicon carbide having the following characteristics: Tires or semi-finished products for tires such as treads comprising said rubber composition.

Rubber composition based on diene elastomer and a reinforcing silicon carbide

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Thierry Chartier