US 12,134,583 B2
Particle based inserts for CMC
Olivier H. Sudre, Glastonbury, CT (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Aug. 12, 2021, as Appl. No. 17/400,638.
Prior Publication US 2023/0047461 A1, Feb. 16, 2023
Int. Cl. C04B 35/628 (2006.01)
CPC C04B 35/62863 (2013.01) [C04B 35/62884 (2013.01); C04B 2235/5244 (2013.01); C04B 2235/614 (2013.01); C04B 2235/6586 (2013.01); C04B 2237/38 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for forming a ceramic matrix composite component, the method comprising:
forming a fibrous preform of the component, the fibrous preform comprising a plurality of fiber layers and a fill region disposed between one or more of the plurality of fiber layers;
providing ceramic particles in the fill region, the ceramic particles disposed in a packed arrangement and separated by interconnected pores; and
densifying the fill region using chemical vapor infiltration, wherein densifying the fill region comprises forming a ceramic matrix between the ceramic particles,
wherein providing the plurality of ceramic particles in the fill region comprises providing a moldable slurry comprising the ceramic particles and a binder material in the fill region.