| abstract |
The present invention forms a fiber preform (20) and forms a plurality of holes (22) extending from at least one side of the preform in the preform, the preform being subjected to chemical vapor infiltration (CVI) in the gas phase. Relates to a composite part produced by densification with a matrix formed at least in part. These holes (22) are formed, for example, by breaking the fibers by high-pressure spraying and removing the material, the arrangement of the fibers in the preform provided with the holes compared to the original arrangement before the formation of the holes , Substantially unchanged. In this way, the densification gradient is greatly reduced, and in the prior art, a density requiring multiple cycles separated by an intermediate peel can be obtained in a single densification step. [Selection] Figure 2 |