A method of fabricating a cmc part
OwnerEric BOUILLON, Michael VERRILLI +2inventors
InventorsEric BOUILLON, Michael VERRILLI, Eric PHILIPPE, Gildas GARNIER
Life of this patent
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Abstract
A method of fabricating a CMC part, includes coating a plurality of tows with an interphase by transporting the tows through a treatment chamber in which a gas phase is injected, the tows being tensioned during their transport and the interphase being formed by vapor deposition from the injected gas phase; forming a fiber preform by performing three-dimensional weaving using the tows coated with the interphase; and forming a consolidated fiber preform by treating the fiber preform by chemical vapor infiltration to form a consolidation phase on the interphase, the consolidation phase comprising silicon carbide and having a Young's modulus greater than or equal to 350 GPa.
Claims17
A method of fabricating a CMC part, the method comprising:
- coating a plurality of tows with an interphase by transporting the tows through a treatment chamber in which a gas phase is injected, the tows being tensioned during their transport and the interphase being formed by vapor deposition from the injected gas phase;
- forming a fiber preform by performing three-dimensional weaving using the tows coated with the interphase;
- and
- forming a consolidated fiber preform by treating the fiber preform by chemical vapor infiltration to form a consolidation phase on the interphase, the consolidation phase comprising silicon carbide and having a Young's modulus greater than or equal to 350 GPa, a volume fraction of the consolidation phase lying in the range from 5% to 30%.
A CMC part comprising:
- a 3D-woven fiber reinforcement comprising a plurality of tows, the tows having a plurality of fibers that are individually coated with an interphase;
- and
- a consolidation phase densifying the fiber reinforcement and located on the interphase, the consolidation phase comprising silicon carbide and having a Young's modulus greater than or equal to 350 GPa, the consolidation phase not containing free silicon, a volume fraction of the consolidation Phase lying in the range 5% to 30%.
(canceled)
Dependencies are inferred from the claim text.