Patent ID: 9440888
Filing Date: 2016-09-13
CPC Classification: C04B,F05D

Claim Text:
1. A method of fabricating a part out of composite material having a matrix that is at least partially made of ceramic, the method comprising the steps of: making a fiber structure, the fibers of the fiber structure being carbon or ceramic fibers; forming an interphase coating on the fibers, the coating being formed by at least one layer of pyrolytic carbon (PyC) or of boron-doped carbon (BC); shaping the fiber structure by means of shaping tooling in order to obtain a fiber preform of the part that is to be fabricated; consolidating the fiber preform in the shaping tooling; forming a first matrix phase on the interphase, the first matrix phase comprising a plurality of layers of self-healing material alternating with one or more layers of material selected from pyrolytic carbon (PyC) and boron-doped carbon (BC), the plurality of layers of self-healing material and the one or more layers of PyC or BC being obtained by chemical vapor infiltration (CVI) in order to obtain a partially densified consolidated preform; and after removing the partially densified consolidated preform from the shaping tooling, continuing densification by dispersing carbon powder and/or ceramic powder within the partially densified consolidated preform and by infiltrating molten silicon or a liquid composition formed most of silicon.