Societe Europeenne De Propulsion

Snecma Propulsion Solide

Societe Nationale D'etude Et De Construction De Moteurs D'aviation

Arianegroup Sas

Herakles

Societe Nationale D'etude Et De Construction De Moteurs D'aviation-snecma

Centre National Detudes Spatiales

Michel Laxague

Jacques Thebault

Jacques Rey

Hervé Evrard

Gerard Palavit

Rodolphe Delaval

Eric Philippe

Bruno C Bernard

Sylvie Loison

Eric Lavasserie

Pascal Diss

Yvan Baudry

Jean-Michel Georges

Clément Bouquet

Marc Lacoste

Jean-Marc Domergue

Marie-Anne Dourges

Dominique Jehl

Herv&eacute; Evrard

A woven fiber structure presenting over at least one of its outside faces a satin weave formed by interlinking a first set of yarns with a second set of yarns; wherein the first set of yarns is in the majority over the outside face, the first set of yarns being formed by a mixture of yarns having an S-twist and of yarns having a Z-twist.

Woven fiber structure presenting a satin weave on at least one of its outside faces

The invention relates to a method of fabricating a composite material part comprising fiber reinforcement densified by a matrix, the method comprising the steps of:

Process for manufacturing a thermostructural composite part

A method of manufacturing a part out of impervious thermostructural composite material, the method comprising forming a porous substrate from at least one fiber reinforcement made of refractory fibers, and densifying the reinforcement by a first phase of carbon and by a second phase of silicon carbide. The method then continues by impregnating the porous substrate with a composition based on molten silicon so as to fill in the pores of the substrate.

Method of manufacturing a part out of impervious thermostructural composite material

An oxidation-sensitive composite has applied thereto a composition comprising a mixture of boride powder constituted for the most part of TiB , at least one vitreous refractory oxide powder constituted for the most part by a mixture of borosilicate glass, and a binder containing a ceramic-precursor resin. The resin is cured and is subsequently transformed into a ceramic by heat treatment or during first exposure of the coated part to high temperatures.

Protecting composite material parts against oxidation

Sealing box for a chamber for continuously treating a thin strip product, in particular for a furnace for continuously carbonizing a fiber substrate

A friction element is made out of a composite material comprising carbon fiber reinforcement and a matrix which, at least in the vicinity of the or each friction face, comprises: a first phase in the vicinity of the reinforcing fibers and containing pyrolytic carbon obtained by chemical vapor infiltration; a refractory second phase of carbon or ceramic obtained at least in part by pyrolysis of a liquid precursor; and a silicon carbide phase obtained by siliciding, for example. At least in the vicinity of the or each friction face, the composite material is preferably constituted, by volume, at least as follows: 15% to 35% carbon fibers; 10% to 55% first matrix phase containing pyrolytic carbon; 2% to 30% second matrix phase of refractory material; and 10% to 35% silicon carbide. The invention is applicable in particular to braking for rail or road vehicles.

Friction element in composite carbon/carbon-silicon carbide material and method for manufacturing same

Method for delivering a molten silicon composition into porous substrates

Method for protecting a porous carbon-containing material from

Method for applying an anti-oxidative coating on brake disks of a

Anti-oxidation protection for a silicon compound under both an active oxidation condition and a passive oxidation condition is achieved by forming an intermediate layer devoid of the element silicon between the surface of the silicon compound ceramic, such as SiC, and a silica based vitreous outer layer, such as SiO.sub.2, to be subsequently deposited. The intermediate layer is made of alumina (Al.sub.2 O.sub.3) or an alumina precursor, so as to constitute a reaction barrier between the silicon compound and the silica outer layer on the one hand, and trap any amount of silica that may be formed by an oxidation of the silicon compound.

Process for anti-oxidation protection of a material of which at least a

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Bordeaux Cauderan, France

Michel Laxague