METHOD FOR MANUFACTURING A PART MADE OF SIC/SIC COMPOSITE MATERIAL

The invention relates to a method for manufacturing a part made of SiC/SiC composite material, the method comprising: * producing a fibrous preform from silicon carbide fibres; * depositing an interphase onto the fibres the fibrous preform; * performing a first densification step comprising the form...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GOUJARD, Stéphane, Roger, André, LADUYE, Guillaume, Jean-Nicolas, COSSOU, Benjamin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINE PLANTS IN GENERAL HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING LIME, MAGNESIA MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES REFRACTORIES SLAG STEAM ENGINES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method for manufacturing a part made of SiC/SiC composite material, the method comprising: * producing a fibrous preform from silicon carbide fibres; * depositing an interphase onto the fibres the fibrous preform; * performing a first densification step comprising the formation of a first matrix phase by chemical vapor infiltration with a first matrix precursor containing methyltrichlorosilane (MTS); * performing a second densification step comprising the formation of a second matrix phase by chemical vapour infiltration with a second SiC precursor that differs from said first precursor, the second precursor forming a SiC deposit comprising residual hydrogen and free silicon; * performing a third densification step comprising the impregnation of the fibrous preform with an impregnation composition containing at least silicon so as to obtain a part made of SiC/SiC composite material.