Christopher B Downie

US Patent:

20220363605, Nov 17, 2022

Filed:

May 17, 2021

Appl. No.:

17/302958

Inventors:

- Indianapolis IN, US
Christopher Downie - Placentia CA, US

International Classification:

C04B 41/45
C04B 35/80
B28B 7/32
B28B 1/52

Abstract:

A method of forming a bladder cast ceramic matrix composite (CMC) article including infiltrating a CMC substrate positioned in a cavity of a mold body with a slurry. The CMC substrate includes reinforcement material defining inner spaces. The slurry includes solid particles and a carrier material. During infiltration, the slurry at least partially fills at least a portion of the inner spaces of the CMC substrate. The method also includes inflating at least one bladder that is coupled to the mold body and disposed within the cavity such that a surface of the at least one bladder in an inflated configuration contacts at least one surface of the CMC substrate. The method also includes drying the slurry to remove at least a portion of the carrier material form an infiltrated CMC and deflating the at least one bladder.