公开(公告)号：US20190389774A1

公开(公告)日：2019-12-26

申请号：US16313824

申请日：2017-06-27

Applicant: SAFRAN CERAMICS

Inventor： Stéphane GOUJARD ,  Adrien DELCAMP ,  Cédric DESCAMPS

IPC: C04B35/571 ,  C04B35/628 ,  C04B35/80 ,  C23C16/04 ,  C23C16/32

Abstract: A method of chemical vapor infiltration or deposition includes forming silicon carbide in pores of a porous substrate or on a surface of a substrate, the substrate being placed in a reaction enclosure, the silicon carbide being formed from a gas phase introduced into the reaction enclosure, the gas phase including a reagent compound that is a precursor of silicon carbide and that has the following formula in which n is an integer equal to 0 or 1; m is an integer lying in the range 1 to 3; p is an integer lying in the range 0 to 2 with m+p=3; and R designates —H or —CH3; a ratio C/Si between the number of carbon atoms and the number of silicon atoms in the introduced gas phase lying in the range 2 to 3.

公开(公告)号：US20200061868A1

公开(公告)日：2020-02-27

申请号：US16467299

申请日：2017-12-04

Applicant: SAFRAN CERAMICS

Inventor： Simon THIBAUD ,  Adrien DELCAMP ,  Sébastien BERTRAND ,  Stéphane GOUJARD

IPC: B28B23/02 ,  C04B35/80 ,  C04B35/52 ,  C04B35/565 ,  C04B35/583 ,  C04B35/83 ,  C23C16/453

Abstract: A shaping tooling for chemical vapor infiltration of a fiber preform includes a structural enclosure formed by supports each provided with a multiply-perforated zone. Each of the supports has in its inside face an uncased zone that includes the multiply-perforated zone. The shaping tooling further includes first and second shaping mold functional elements, each present in a respective one of the uncased zones of the support. Each shaping mold functional element has a first face of a determined shape corresponding to the shape of the part that is to be made and a second face that is held facing the inside face of a support. Each functional element has a plurality of perforations and presents a number of perforations, a size of perforations, or a shape of perforations that differs from the number, the size, or the shape of the perforations present in the facing support.