Process for manufacturing a fibrous texture for densification by chemical infiltration in the gas phase

Abstract

A process for manufacturing a fibrous texture for densification by chemical infiltration in the gas phase. A process for manufacturing a fibrous texture for a part made of ceramic matrix composite material includes the production of a fibrous blank (20), the fibrous blank comprising a woven portion (200) by three-dimensional weaving between a plurality of layers of warp yarns (201) made of silicon carbide and layers of weft yarns (202) predominantly made of silicon carbide, the woven portion (200) comprising a first part (210) having a thickness (E210) greater than the thickness (E220) of the second part (220).The process further comprises the following steps: - insertion of carbon fibers (TC1-TC7) into weft layers located in the core of the first part (210) of the woven portion (200), - cutting of the warp (201) and weft (202) fibers of silicon carbide at the boundary of the woven portion (200) while retaining unwoven excess lengths of carbon weft fibers on each side of the woven portion. Figure for the abstract: Fig. 2.