	US 11,787,746 B1
	Compressible coating reinforcements for ceramic matrix composites, and methods of making the same
Mark O'Masta, Oak Park, CA (US); Phuong Bui, Thousand Oaks, CA (US); and Tobias Schaedler, Oak Park, CA (US)
Assigned to HRL Laboratories, LLC, Malibu, CA (US)
Filed by HRL Laboratories, LLC, Malibu, CA (US)
Filed on Nov. 5, 2021, as Appl. No. 17/520,154.
Claims priority of provisional application 63/148,041, filed on Feb. 10, 2021.
Int. Cl. C04B 35/80 (2006.01); C04B 35/628 (2006.01); C04B 111/40 (2006.01)

CPC C04B 35/80 (2013.01) [C04B 35/628 (2013.01); C04B 2111/40 (2013.01); C04B 2235/5276 (2013.01)]

24 Claims

1. A pre-ceramic matrix composite comprising:

(a) a precursor matrix comprising a pre-ceramic material;

(b) one or more reinforcing elements disposed within said precursor matrix, wherein said one or more reinforcing elements each contain a reinforcement material; and

(c) a compressible material disposed on a surface of said one or more reinforcing elements and interposed between said one or more reinforcing elements and said precursor matrix,

wherein said compressible material is characterized by a compressibility of greater than 5%,

and wherein said compressible material has a thickness less than or equal to an average thickness of said one or more reinforcing elements.