METHOD FOR MANUFACTURING A CMC PART

The present invention relates to a method for manufacturing a ceramic matrix composite part (115), comprising at least: the coating of an outer surface (S) of a porous preform (100) with a layer of afugitive material (102) in order to form a model (101) of the part to be obtained, the fugitive mater...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LELEU CHARLES, DAMBRINE BRUNO JACQUES GERARD, RAPPART YVAN, PODGORSKI MICHAEL, MENDEZ EMILIE CHANTAL GISELLE, ZHANG WEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARTIFICIAL STONE BLASTING CASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ENGINE PLANTS IN GENERAL FOUNDRY MOULDING HEATING LIGHTING LIME, MAGNESIA MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS POWDER METALLURGY REFRACTORIES SLAG STEAM ENGINES TRANSPORTING TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a method for manufacturing a ceramic matrix composite part (115), comprising at least: the coating of an outer surface (S) of a porous preform (100) with a layer of afugitive material (102) in order to form a model (101) of the part to be obtained, the fugitive material being a wax or a resin, the layer of fugitive material in the model not exceeding the highest peak (100a) of the surface ripples of the porous preform, and ceramic and/or carbon particles being present in the porosity of the porous preform, the covering of the model formed with a ceramic pulverulent composition (105), the heat treatment of the covered model in order to eliminate the fugitive material and form a ceramic shell mold (107) by sintering of the ceramic pulverulent composition, the introduction of a molten composition (112) comprising silicon inside the shell mold in order to obtain the part in the shell mold, the molten composition infiltrating the porosity of the porous preform in order to form the